Glass composition

Abstract

A glass composition comprising about 30 weight percent to about 70 weight percent silicon oxide, about 0.1 weight percent to about 10 weight percent aluminum oxide, about 2 weight percent to about 30 weight percent boron oxide, about 2 weight percent to about 40 weight percent lithium oxide, about 0.1 weight percent to about 5 weight percent magnesium oxide, and one or more of calcium oxide, gallium oxide, potassium oxide, samarium oxide, strontium oxide, and titanium oxide. An aerosol generating device (1000) comprising a heater (1010). A component (1020) of the heater (1010) includes a coating (1060). The coating (1060) is formed from the glass composition.

Description

[Technical field]

[0001] The present invention relates to a glass composition. The glass composition may be suitable for use as a coating for a heater component of an aerosol generating device. The present invention also relates to an aerosol generating device including a heater, the heater component including a coating formed from the glass composition. The present invention also relates to an article formed from the glass composition. [Background technology]

[0002] An aerosol generating system for delivering an aerosol to a user typically comprises an aerosol generating device and an aerosol generating article. The aerosol generating device may include an atomizer configured to generate an inhalable aerosol from an aerosol-forming substrate provided in the aerosol generating article. Some known aerosol generating devices include a heater, such as an electric heater or an induction heating device. The heater is configured to heat and vaporize the aerosol-forming substrate to generate an aerosol. A typical aerosol-forming substrate for use in an aerosol generating system is a nicotine formulation, which may be a liquid nicotine formulation including an aerosol former such as glycerin and / or propylene glycol.

[0003] It is desirable to provide an aerosol generating system in which the heater components or parts are easy to clean. Summary of the Invention

[0004] A glass composition is provided. The glass composition may include about 30 weight percent to about 70 weight percent silicon oxide. The glass composition may include about 0.1 weight percent to about 10 weight percent aluminum oxide. The glass composition may include about 2 weight percent to about 30 weight percent boron oxide. The glass composition may include about 2 weight percent to about 40 weight percent lithium oxide. The glass composition may include about 0.1 weight percent to about 5 weight percent magnesium oxide. The glass composition may include one or more of calcium oxide, gallium oxide, potassium oxide, samarium oxide, strontium oxide, and titanium oxide.

[0005] Also provided is a glass composition comprising about 30 weight percent to about 70 weight percent silicon oxide, about 0.1 to about 10 weight percent aluminum oxide, about 2 weight percent to about 30 weight percent boron oxide, about 2 weight percent to about 40 weight percent lithium oxide, about 0.1 weight percent to about 5 weight percent magnesium oxide, and one or more of calcium oxide, gallium oxide, potassium oxide, samarium oxide, strontium oxide, and titanium oxide.

[0006] An aerosol generating device is also provided. The aerosol generating device may include a heater. A component of the heater may include a coating. The coating may be formed from a glass composition. The glass composition may include about 30 weight percent to about 70 weight percent silicon oxide. The glass composition may include about 0.1 weight percent to about 10 weight percent aluminum oxide. The glass composition may include about 2 weight percent to about 30 weight percent boron oxide. The glass composition may include about 2 weight percent to about 40 weight percent lithium oxide. The glass composition may include about 0.1 weight percent to about 5 weight percent magnesium oxide. The glass composition may include one or more of calcium oxide, gallium oxide, potassium oxide, samarium oxide, strontium oxide, and titanium oxide.

[0007] Also provided is an aerosol generating device including a heater, wherein the heater component includes a coating, the coating being formed from a glass composition including about 30 weight percent to about 70 weight percent silicon oxide, about 0.1 weight percent to about 10 weight percent aluminum oxide, about 2 weight percent to about 30 weight percent boron oxide, about 2 weight percent to about 40 weight percent lithium oxide, about 0.1 weight percent to about 5 weight percent magnesium oxide, and one or more of calcium oxide, gallium oxide, potassium oxide, samarium oxide, strontium oxide, and titanium oxide.

[0008] An aerosol generating system is also provided. The aerosol generating system may comprise an aerosol generating device. The aerosol generating system may comprise an aerosol generating article. The aerosol generating device may comprise a heater. A component of the heater may comprise a coating. The coating may be formed from a glass composition. The glass composition may comprise about 30 weight percent to about 70 weight percent silicon oxide. The glass composition may comprise about 0.1 weight percent to about 10 weight percent aluminum oxide. The glass composition may comprise about 2 weight percent to about 30 weight percent boron oxide. The glass composition may comprise about 2 weight percent to about 40 weight percent lithium oxide. The glass composition may comprise about 0.1 weight percent to about 5 weight percent magnesium oxide. The glass composition may comprise one or more of calcium oxide, gallium oxide, potassium oxide, samarium oxide, strontium oxide, and titanium oxide.

[0009] Also provided is an aerosol generating system including an aerosol generating device and an aerosol generating article, the aerosol generating device including a heater, and a heater component including a coating, the coating being formed from a glass composition including about 30 weight percent to about 70 weight percent silicon oxide, about 0.1 weight percent to about 10 weight percent aluminum oxide, about 2 weight percent to about 30 weight percent boron oxide, about 2 weight percent to about 40 weight percent lithium oxide, about 0.1 weight percent to about 5 weight percent magnesium oxide, and one or more of calcium oxide, gallium oxide, potassium oxide, samarium oxide, strontium oxide, and titanium oxide.

[0010] Articles are also provided. The articles may be formed from the glass compositions. The glass compositions may include about 30 weight percent to about 70 weight percent silicon oxide. The glass compositions may include about 0.1 weight percent to about 10 weight percent aluminum oxide. The glass compositions may include about 2 weight percent to about 30 weight percent boron oxide. The glass compositions may include about 2 weight percent to about 40 weight percent lithium oxide. The glass compositions may include about 0.1 weight percent to about 5 weight percent magnesium oxide. The glass compositions may include one or more of calcium oxide, gallium oxide, potassium oxide, samarium oxide, strontium oxide, and titanium oxide.

[0011] Also provided is an article formed from a glass composition including about 30 weight percent to about 70 weight percent silicon oxide, about 0.1 weight percent to about 10 weight percent aluminum oxide, about 2 weight percent to about 30 weight percent boron oxide, about 2 weight percent to about 40 weight percent lithium oxide, about 0.1 weight percent to about 5 weight percent magnesium oxide, and one or more of calcium oxide, gallium oxide, potassium oxide, samarium oxide, strontium oxide, and titanium oxide.

[0012] Glass made using the glass composition according to the present invention can provide a smooth and hard surface without defects. Furthermore, the glass composition according to the present invention can be fired at a relatively low temperature compared to conventional glass compositions. This low firing temperature allows the glass composition to be used in a wider range of applications compared to conventional glass compositions. For example, the glass composition can be used as a coating to at least partially cover sensitive components in a heater, such as a heater in an aerosol generating device.

[0013] Glass made from the glass composition according to the present invention can be used as a coating on one or more components of the heater of an aerosol generating device to provide a smooth surface that can be easily cleaned by the user.

[0014] The term "aerosol-generating article" as used herein refers to an article for generating an aerosol. An aerosol-generating article typically comprises an aerosol-forming substrate that is suitable and intended to be heated or burned to release volatile compounds capable of forming an aerosol. A conventional cigarette is lit when a user applies a flame to one end of the cigarette and draws air through the other end. The localized heat provided by the flame and the oxygen in the air drawn through the cigarette ignites the end of the cigarette, and the resulting combustion produces inhalable smoke. In contrast, in a "heated aerosol-generating article", the aerosol is generated by heating the aerosol-forming substrate, rather than by burning the aerosol-forming substrate. Known heated aerosol-generating articles include, for example, electrically heated aerosol-generating articles.

[0015] The term "aerosol-forming substrate" as used herein refers to a substrate that can generate, upon heating, a volatile compound capable of forming an aerosol. The aerosol generated from the aerosol-forming substrate may or may not be visible to the human eye and may include vapor (e.g., gaseous particles of a substance that is normally a liquid or solid at room temperature), as well as gas and liquid droplets of condensed vapor.

[0016] As used herein, the term "aerosol-generating device" refers to a device that includes a heater or heating element that interacts with an aerosol-forming substrate of an aerosol-generating article to generate an aerosol.

[0017] As used herein, the term "coating" refers to an outer layer that at least partially covers the outer surface of the element that contains the coating. In some examples, the coating may completely cover the outer surface of the element that contains the coating.

[0018] The glass composition may include a silicon oxide. For example, the glass composition may include a silicon dioxide having the formula SiO2.

[0019] The inclusion of silicon oxide in the glass composition may result in low temperature formation of a eutectic composition. The inclusion of silicon oxide may improve the glass forming ability of the glass composition. The inclusion of silicon oxide in the composition may result in an increase in the linear expansion coefficient. The inclusion of silicon oxide in the composition may improve compatibility with ceramic substrates.

[0020] The glass composition may include at least about 30 weight percent silicon oxide. The glass composition may include at least about 35 weight percent silicon oxide. The glass composition may include at least about 40 weight percent silicon oxide. The glass composition may include at least about 45 weight percent silicon oxide. The glass composition may include at least about 50 weight percent silicon oxide. The glass composition may include at least about 55 weight percent silicon oxide. The glass composition may include at least about 60 weight percent silicon oxide. The glass composition may include at least about 65 weight percent silicon oxide.

[0021] The glass composition may include less than about 70 weight percent silicon oxide. The glass composition may include less than about 65 weight percent silicon oxide. The glass composition may include less than about 60 weight percent silicon oxide. The glass composition may include less than about 55 weight percent silicon oxide. The glass composition may include less than about 50 weight percent silicon oxide. The glass composition may include less than about 45 weight percent silicon oxide. The glass composition may include less than about 40 weight percent silicon oxide. The glass composition may include less than about 35 weight percent silicon oxide.

[0022] The glass composition may comprise about 35 weight percent to about 70 weight percent silicon oxide. The glass composition may comprise about 35 weight percent to about 65 weight percent silicon oxide. The glass composition may comprise about 40 weight percent to about 65 weight percent silicon oxide. The glass composition may comprise about 40 weight percent to about 60 weight percent. The glass composition may comprise about 45 weight percent to about 60 weight percent. The glass composition may comprise about 45 weight percent to about 55 weight percent. The glass composition may comprise about 50 weight percent to about 55 weight percent.

[0023] The glass composition may include aluminum oxide. For example, the glass composition may include aluminum oxide having the formula Al2O3.

[0024] The inclusion of aluminum oxide in the glass composition may result in low temperature formation of a eutectic composition. The inclusion of aluminum oxide may improve the glass forming ability of the glass composition. The inclusion of aluminum oxide in the composition may result in an increase in the linear expansion coefficient. The inclusion of aluminum oxide in the composition may improve compatibility with ceramic substrates.

[0025] The glass composition may include at least about 0.1 weight percent aluminum oxide. The glass composition may include at least about 0.5 weight percent aluminum oxide. The glass composition may include at least about 1 weight percent aluminum oxide. The glass composition may include at least about 2 weight percent aluminum oxide. The glass composition may include at least about 3 weight percent aluminum oxide. The glass composition may include at least about 4 weight percent aluminum oxide. The glass composition may include at least about 5 weight percent aluminum oxide.

[0026] The glass composition may include less than about 10 weight percent aluminum oxide. The glass composition may include less than about 8 weight percent aluminum oxide. The glass composition may include less than about 5 weight percent aluminum oxide. The glass composition may include less than about 4 weight percent aluminum oxide. The glass composition may include less than about 3 weight percent aluminum oxide. The glass composition may include less than about 1 weight percent aluminum oxide. The glass composition may include less than about 0.5 weight percent aluminum oxide.

[0027] The glass composition may include about 0.1 weight percent to about 8 weight percent aluminum oxide. The glass composition may include about 0.1 weight percent to about 5 weight percent aluminum oxide. The glass composition may include about 0.5 weight percent to about 5 weight percent aluminum oxide. The glass composition may include about 0.5 weight percent to about 4 weight percent aluminum oxide. The glass composition may include about 1 weight percent to about 4 weight percent aluminum oxide. The glass composition may include about 1 weight percent to about 4 weight percent aluminum oxide. The glass composition may include about 2 weight percent to about 3 weight percent aluminum oxide.

[0028] The glass composition may include a boron oxide. For example, the glass composition may include boron trioxide having the formula B2O3.

[0029] The inclusion of boron oxide in the glass composition can result in low temperature formation of a eutectic composition. The inclusion of boron oxide can improve the glass forming ability of the glass composition. The inclusion of boron oxide in the composition can result in an increase in the linear expansion coefficient. The inclusion of boron oxide in the composition can improve compatibility with ceramic substrates.

[0030] The glass composition may include at least about 0.1 weight percent boron oxide. The glass composition may include at least about 1 weight percent boron oxide. The glass composition may include at least about 2 weight percent boron oxide. The glass composition may include at least about 4 weight percent boron oxide. The glass composition may include at least about 5 weight percent boron oxide. The glass composition may include at least about 10 weight percent boron oxide. The glass composition may include at least about 15 weight percent boron oxide. The glass composition may include at least about 20 weight percent boron oxide.

[0031] The glass composition may include less than about 30 weight percent boron oxide. The glass composition may include less than about 25 weight percent boron oxide. The glass composition may include less than about 20 weight percent boron oxide. The glass composition may include less than about 15 weight percent boron oxide. The glass composition may include less than about 10 weight percent boron oxide. The glass composition may include less than about 5 weight percent boron oxide.

[0032] The glass composition may include from about 0.1 weight percent to about 30 weight percent boron oxide. The glass composition may include from about 2 weight percent to about 30 weight percent boron oxide. The glass composition may include from about 4 weight percent to about 30 weight percent boron oxide. The glass composition may include from about 2 weight percent to about 20 weight percent boron oxide. The glass composition may include from about 4 weight percent to about 20 weight percent boron oxide. The glass composition may include from about 5 weight percent to about 20 weight percent boron oxide. The glass composition may include from about 5 weight percent to about 15 weight percent boron oxide. The glass composition may include from about 10 weight percent to about 15 weight percent boron oxide.

[0033] The glass composition may include lithium oxide. For example, the glass composition may include lithium oxide having the formula Li2O.

[0034] The inclusion of lithium oxide in the glass composition can provide low temperature formation of a eutectic composition. The inclusion of lithium oxide can improve the glass forming ability of the glass composition. The inclusion of lithium oxide in the composition can provide an increase in the linear expansion coefficient. The inclusion of lithium oxide in the composition can improve compatibility with ceramic substrates.

[0035] The glass composition may include at least about 0.1 weight percent lithium oxide. The glass composition may include at least about 2 weight percent lithium oxide. The glass composition may include at least about 5 weight percent lithium oxide. The glass composition may include at least about 10 weight percent lithium oxide. The glass composition may include at least about 15 weight percent lithium oxide. The glass composition may include at least about 20 weight percent lithium oxide. The glass composition may include at least about 25 weight percent lithium oxide.

[0036] The glass composition may include less than about 40 weight percent lithium oxide. The glass composition may include less than about 35 weight percent lithium oxide. The glass composition may include less than about 30 weight percent lithium oxide. The glass composition may include less than about 25 weight percent lithium oxide. The glass composition may include less than about 20 weight percent lithium oxide. The glass composition may include less than about 15 weight percent lithium oxide. The glass composition may include less than about 10 weight percent lithium oxide. The glass composition may include less than about 5 weight percent lithium oxide.

[0037] The glass composition may include about 2 weight percent to about 40 weight percent lithium oxide. The glass composition may include about 2 weight percent to about 35 weight percent lithium oxide. The glass composition may include about 2 weight percent to about 30 weight percent lithium oxide. The glass composition may include about 2 weight percent to about 25 weight percent lithium oxide. The glass composition may include about 5 weight percent to about 25 weight percent lithium oxide. The glass composition may include about 5 weight percent to about 20 weight percent lithium oxide. The glass composition may include about 10 weight percent to about 20 weight percent lithium oxide. The glass composition may include about 10 weight percent to about 15 weight percent lithium oxide.

[0038] The glass composition may include magnesium oxide. For example, the glass composition may include magnesium oxide having the formula MgO.

[0039] The inclusion of magnesium oxide in the glass composition may result in low temperature formation of a eutectic composition. The inclusion of magnesium oxide may improve the glass forming ability of the glass composition. The inclusion of magnesium oxide in the composition may result in an increase in the linear expansion coefficient. The inclusion of magnesium oxide in the composition may improve compatibility with ceramic substrates.

[0040] The glass composition may include at least about 0.1 weight percent magnesium oxide. The glass composition may include at least about 0.5 weight percent magnesium oxide. The glass composition may include at least about 1 weight percent magnesium oxide. The glass composition may include at least about 1.5 weight percent magnesium oxide. The glass composition may include at least about 2 weight percent magnesium oxide. The glass composition may include at least about 2.5 weight percent magnesium oxide.

[0041] The glass composition may include less than about 5 weight percent magnesium oxide. The glass composition may include less than about 2.5 weight percent magnesium oxide. The glass composition may include less than about 2 weight percent magnesium oxide. The glass composition may include less than about 1.5 weight percent magnesium oxide. The glass composition may include less than about 1 weight percent magnesium oxide. The glass composition may include less than about 0.5 weight percent magnesium oxide.

[0042] The glass composition may include about 0.1 weight percent to about 5 weight percent magnesium oxide. The glass composition may include about 0.1 weight percent to about 2.5 weight percent magnesium oxide. The glass composition may include about 0.5 weight percent to about 2.5 weight percent magnesium oxide. The glass composition may include about 0.5 weight percent to about 2 weight percent magnesium oxide. The glass composition may include about 1 weight percent to about 2 weight percent magnesium oxide. The glass composition may include about 1 weight percent to about 1.5 weight percent magnesium oxide.

[0043] The glass composition may include calcium oxide. For example, the glass composition may include calcium oxide having a formula of CaO.

[0044] The inclusion of calcium oxide in the glass composition may result in low temperature formation of a eutectic composition. The inclusion of calcium oxide may improve the glass forming ability of the glass composition. The inclusion of calcium oxide in the composition may result in an increase in the linear expansion coefficient. The inclusion of calcium oxide in the composition may improve compatibility with ceramic substrates.

[0045] The glass composition may include at least about 0.1 weight percent calcium oxide. The glass composition may include at least about 0.5 weight percent calcium oxide. The glass composition may include at least about 1 weight percent calcium oxide. The glass composition may include at least about 1.5 weight percent calcium oxide. The glass composition may include at least about 2 weight percent calcium oxide. The glass composition may include at least about 2.5 weight percent calcium oxide. The glass composition may include at least about 5 weight percent calcium oxide.

[0046] The glass composition may include less than about 5 weight percent calcium oxide. The glass composition may include less than about 2.5 weight percent calcium oxide. The glass composition may include less than about 2 weight percent calcium oxide. The glass composition may include less than about 1.5 weight percent calcium oxide. The glass composition may include less than about 1 weight percent calcium oxide. The glass composition may include less than about 0.2 weight percent calcium oxide.

[0047] The glass composition may include from about 0.1 weight percent to about 5 weight percent calcium oxide. The glass composition may include from about 0.1 weight percent to about 2.5 weight percent calcium oxide. The glass composition may include from about 0.5 weight percent to about 2.5 weight percent calcium oxide. The glass composition may include from about 0.5 weight percent to about 2 weight percent calcium oxide. The glass composition may include from about 1 weight percent to about 2 weight percent calcium oxide. The glass composition may include from about 1 weight percent to about 1.5 weight percent calcium oxide.

[0048] The glass composition may include gallium oxide. For example, the glass composition may include gallium(III) trioxide having the formula G2O3.

[0049] The inclusion of gallium oxide in the glass composition may result in low temperature formation of a eutectic composition. The inclusion of gallium oxide may improve the glass forming ability of the glass composition. The inclusion of gallium oxide in the composition may result in an increase in the linear expansion coefficient. The inclusion of gallium oxide in the composition may improve compatibility with ceramic substrates.

[0050] The glass composition may include at least about 0.1 weight percent gallium oxide. The glass composition may include at least about 0.5 weight percent gallium oxide. The glass composition may include at least about 1 weight percent gallium oxide. The glass composition may include at least about 1.5 weight percent gallium oxide. The glass composition may include at least about 2 weight percent gallium oxide. The glass composition may include at least about 2.5 weight percent gallium oxide. The glass composition may include at least about 3 weight percent gallium oxide. The glass composition may include at least about 3.5 weight percent gallium oxide.

[0051] The glass composition may include less than about 10 weight percent gallium oxide. The glass composition may include less than about 5 weight percent gallium oxide. The glass composition may include less than about 4 weight percent gallium oxide. The glass composition may include less than about 3.5 weight percent gallium oxide. The glass composition may include less than about 3 weight percent gallium oxide. The glass composition may include less than about 2.5 weight percent gallium oxide. The glass composition may include less than about 1.5 weight percent gallium oxide. The glass composition may include less than about 1 weight percent gallium oxide. The glass composition may include less than about 0.5 weight percent gallium oxide.

[0052] The glass composition may include about 0.1 weight percent to about 10 weight percent gallium oxide. The glass composition may include about 0.1 weight percent to about 5 weight percent gallium oxide. The glass composition may include about 0.5 weight percent to about 5 weight percent gallium oxide. The glass composition may include about 0.5 weight percent to about 4 weight percent gallium oxide. The glass composition may include about 1 weight percent to about 4 weight percent gallium oxide. The glass composition may include about 1 weight percent to about 3.5 weight percent gallium oxide. The glass composition may include about 1.5 weight percent to about 3.5 weight percent gallium oxide. The glass composition may include about 1.5 weight percent to about 3 weight percent gallium oxide. The glass composition may include about 2 weight percent to about 3 weight percent gallium oxide. The glass composition may include about 2 weight percent to about 2.5 weight percent gallium oxide.

[0053] The glass composition may include potassium oxide. For example, the glass composition may include potassium oxide having the formula KO.

[0054] The inclusion of potassium oxide in the glass composition may result in low temperature formation of a eutectic composition. The inclusion of potassium oxide may improve the glass forming ability of the glass composition. The inclusion of potassium oxide in the composition may result in an increase in the linear expansion coefficient. The inclusion of potassium oxide in the composition may improve compatibility with ceramic substrates.

[0055] The glass composition may include at least about 0.1 weight percent potassium oxide. The glass composition may include at least about 0.5 weight percent potassium oxide. The glass composition may include at least about 1 weight percent potassium oxide. The glass composition may include at least about 1.5 weight percent potassium oxide. The glass composition may include at least about 2 weight percent potassium oxide. The glass composition may include at least about 2.5 weight percent potassium oxide. The glass composition may include at least about 3 weight percent potassium oxide. The glass composition may include at least about 3 weight percent potassium oxide. The glass composition may include at least about 3.5 weight percent potassium oxide. The glass composition may include at least about 4 weight percent potassium oxide. The glass composition may include at least about 4.5 weight percent potassium oxide. The glass composition may include at least about 5 weight percent potassium oxide. The glass composition may include at least about 5.5 weight percent potassium oxide. The glass composition may include at least about 6 weight percent potassium oxide.

[0056] The glass composition may include less than about 10 weight percent potassium oxide. The glass composition may include less than about 8 weight percent potassium oxide. The glass composition may include less than about 6 weight percent potassium oxide. The glass composition may include less than about 5.5 weight percent potassium oxide. The glass composition may include less than about 5 weight percent potassium oxide. The glass composition may include less than about 4.5 weight percent potassium oxide. The glass composition may include less than about 4 weight percent potassium oxide. The glass composition may include less than about 3.5 weight percent potassium oxide. The glass composition may include less than about 3 weight percent potassium oxide. The glass composition may include less than about 2.5 weight percent potassium oxide. The glass composition may include less than about 2 weight percent potassium oxide. The glass composition may include less than about 1.5 weight percent potassium oxide. The glass composition may include less than about 1 weight percent potassium oxide. The glass composition may include less than about 0.5 weight percent potassium oxide.

[0057] The glass composition may include about 0.1 weight percent to about 10 weight percent potassium oxide. The glass composition may include about 0.1 weight percent to about 8 weight percent potassium oxide. The glass composition may include about 0.1 weight percent to about 6 weight percent potassium oxide. The glass composition may include about 0.5 weight percent to about 6 weight percent potassium oxide. The glass composition may include about 0.5 weight percent to about 5.5 weight percent potassium oxide. The glass composition may include, for example, about 1 weight percent to about 5.5 weight percent potassium oxide. The glass composition may include about 1 weight percent to about 5 weight percent potassium oxide. The glass composition may include about 1.5 weight percent to about 5 weight percent potassium oxide. The glass composition may include about 1.5 weight percent to about 4.5 weight percent potassium oxide. The glass composition may include about 2 weight percent to about 4.5 weight percent potassium oxide. The glass composition may include about 2 weight percent to about 4 weight percent potassium oxide. The glass composition may include about 2.5 weight percent to about 4 weight percent potassium oxide.The glass composition may include about 2.5 weight percent to about 3.5 weight percent potassium oxide.The glass composition may include about 3 weight percent to about 3.5 weight percent potassium oxide.

[0058] The glass composition may include samarium oxide. For example, the glass composition may include samarium(III) oxide having the formula Sm2O3.

[0059] The inclusion of samarium oxide in the glass composition may provide low temperature formation of a eutectic composition. The inclusion of samarium oxide may improve the glass forming ability of the glass composition. The inclusion of samarium oxide in the composition may provide an increased coefficient of linear expansion. The inclusion of samarium oxide in the composition may improve compatibility with ceramic substrates.

[0060] The glass composition may include at least about 0.1 weight percent samarium oxide. The glass composition may include at least about 0.5 weight percent samarium oxide. The glass composition may include at least about 1 weight percent samarium oxide. The glass composition may include at least about 1.5 weight percent samarium oxide. The glass composition may include at least about 2 weight percent samarium oxide. The glass composition may include at least about 2.5 weight percent samarium oxide. The glass composition may include at least about 3 weight percent samarium oxide. The glass composition may include at least about 3.5 weight percent samarium oxide. The glass composition may include at least about 4 weight percent samarium oxide. The glass composition may include at least about 4.5 weight percent samarium oxide.

[0061] The glass composition may include less than about 5 weight percent samarium oxide. The glass composition may include less than about 4.5 weight percent samarium oxide. The glass composition may include less than about 4 weight percent samarium oxide. The glass composition may include less than about 3.5 weight percent samarium oxide. The glass composition may include less than about 3 weight percent samarium oxide. The glass composition may include less than about 2.5 weight percent samarium oxide. The glass composition may include less than about 2 weight percent samarium oxide. The glass composition may include less than about 1.5 weight percent samarium oxide. The glass composition may include less than about 1 weight percent samarium oxide. The glass composition may include less than about 0.5 weight percent samarium oxide.

[0062] The glass composition may include about 0.1 weight percent to about 5 weight percent samarium oxide. The glass composition may include about 0.1 weight percent to about 4.5 weight percent samarium oxide. The glass composition may include about 0.1 weight percent to about 4 weight percent samarium oxide. The glass composition may include about 0.1 weight percent to about 3.5 weight percent samarium oxide. The glass composition may include about 0.1 weight percent to about 3 weight percent samarium oxide. The glass composition may include about 0.1 weight percent to about 2.5 weight percent samarium oxide. The glass composition may include about 0.5 weight percent to about 2.5 weight percent samarium oxide. The glass composition may include about 0.5 weight percent to about 2 weight percent samarium oxide. The glass composition may include about 1 weight percent to about 2 weight percent samarium oxide. The glass composition may include about 1 weight percent to about 1.5 weight percent samarium oxide.

[0063] The glass composition may include strontium oxide. For example, the glass composition may include strontium oxide having the formula SrO.

[0064] The inclusion of strontium oxide in the glass composition may result in low temperature formation of a eutectic composition. The inclusion of strontium oxide may improve the glass forming ability of the glass composition. The inclusion of strontium oxide in the composition may result in an increase in the linear expansion coefficient. The inclusion of strontium oxide in the composition may improve compatibility with ceramic substrates.

[0065] The glass composition may include at least about 0.1 weight percent strontium oxide. The glass composition may include at least about 0.5 weight percent strontium oxide. The glass composition may include at least about 1 weight percent strontium oxide. The glass composition may include at least about 1.5 weight percent strontium oxide. The glass composition may include at least about 2 weight percent strontium oxide. The glass composition may include at least about 2.5 weight percent strontium oxide. The glass composition may include at least about 3 weight percent strontium oxide. The glass composition may include at least about 3.5 weight percent strontium oxide. The glass composition may include at least about 4 weight percent strontium oxide. The glass composition may include at least about 5 weight percent strontium oxide. The glass composition may include at least about 8 weight percent strontium oxide.

[0066] The glass composition may include less than about 10 weight percent strontium oxide. The glass composition may include less than about 8 weight percent strontium oxide. The glass composition may include less than about 5 weight percent strontium oxide. The glass composition may include less than about 4.5 weight percent strontium oxide. The glass composition may include less than about 4 weight percent strontium oxide. The glass composition may include less than about 3.5 weight percent strontium oxide. The glass composition may include less than about 3 weight percent strontium oxide. The glass composition may include less than about 2.5 weight percent strontium oxide. The glass composition may include less than about 2 weight percent strontium oxide. The glass composition may include less than about 1.5 weight percent strontium oxide. The glass composition may include less than about 1 weight percent strontium oxide. The glass composition may include less than about 0.5 weight percent strontium oxide.

[0067] The glass composition may include between about 0.1 weight percent and about 10 weight percent strontium oxide. The glass composition may include between about 0.1 weight percent and about 9 weight percent strontium oxide. The glass composition may include between about 0.1 weight percent and about 8 weight percent strontium oxide. The glass composition may include between about 0.1 weight percent and about 7 weight percent strontium oxide. The glass composition may include between about 0.1 weight percent and about 6 weight percent strontium oxide. The glass composition may include between about 0.1 weight percent and about 5 weight percent strontium oxide. The glass composition may include between about 0.1 weight percent and about 4.5 weight percent strontium oxide. The glass composition may include between about 0.5 weight percent and about 4.5 weight percent strontium oxide. The glass composition may include between about 0.5 weight percent and about 4 weight percent strontium oxide. The glass composition may include between about 1 weight percent and about 4 weight percent strontium oxide. The glass composition may include between about 1 weight percent and about 3.5 weight percent strontium oxide. The glass composition may include between about 1.5 weight percent and about 3.5 weight percent strontium oxide. The glass composition may include between about 1.5 weight percent and about 3 weight percent strontium oxide. The glass composition may include between about 2 weight percent and about 3 weight percent strontium oxide. The glass composition may include between about 2 weight percent and about 2.5 weight percent strontium oxide.

[0068] The glass composition may include titanium oxide. For example, the glass composition may include titanium(IV) oxide having the formula TiO2.

[0069] The inclusion of titanium oxide in the glass composition may result in low temperature formation of a eutectic composition. The inclusion of titanium oxide may improve the glass forming ability of the glass composition. The inclusion of titanium oxide in the composition may result in an increase in the linear expansion coefficient. The inclusion of titanium oxide in the composition may improve compatibility with ceramic substrates.

[0070] The glass composition may include at least about 0.1 weight percent titanium oxide. The glass composition may include at least about 0.5 weight percent titanium oxide. The glass composition may include at least about 1 weight percent titanium oxide. The glass composition may include at least about 1.5 weight percent titanium oxide. The glass composition may include at least about 2 weight percent titanium oxide. The glass composition may include at least about 2.5 weight percent titanium oxide. The glass composition may include at least about 3 weight percent titanium oxide. The glass composition may include at least about 3.5 weight percent titanium oxide. The glass composition may include at least about 4 weight percent titanium oxide. The glass composition may include at least about 4.5 weight percent titanium oxide. The glass composition may include at least about 5 weight percent titanium oxide. The glass composition may include at least about 5.5 weight percent titanium oxide. The glass composition may include at least about 6 weight percent titanium oxide.

[0071] The glass composition may include less than about 10 weight percent titanium oxide. The glass composition may include less than about 8 weight percent titanium oxide. The glass composition may include less than about 6.5 weight percent titanium oxide. The glass composition may include less than about 6 weight percent titanium oxide. The glass composition may include less than about 5.5 weight percent titanium oxide. The glass composition may include less than about 5 weight percent titanium oxide. The glass composition may include less than about 4.5 weight percent titanium oxide. The glass composition may include less than about 4 weight percent titanium oxide. The glass composition may include less than about 3.5 weight percent titanium oxide. The glass composition may include less than about 3 weight percent titanium oxide. The glass composition may include less than about 2.5 weight percent titanium oxide. The glass composition may include less than about 2 weight percent titanium oxide. The glass composition may include less than about 1.5 weight percent titanium oxide. The glass composition may include less than about 1 weight percent titanium oxide. The glass composition may include less than about 0.5 weight percent titanium oxide.

[0072] The glass composition may include about 0.1 weight percent to about 10 weight percent titanium oxide. The glass composition may include about 0.1 weight percent to about 8 weight percent titanium oxide. The glass composition may include about 0.1 weight percent to about 6.5 weight percent titanium oxide. The glass composition may include about 0.5 weight percent to about 6.5 weight percent titanium oxide. The glass composition may include about 0.5 weight percent to about 6 weight percent titanium oxide. The glass composition may include about 1 weight percent to about 6 weight percent titanium oxide. The glass composition may include about 1.5 weight percent to about 6 weight percent titanium oxide. The glass composition may include about 1.5 weight percent to about 5.5 weight percent titanium oxide. The glass composition may include about 2 weight percent to about 5.5 weight percent titanium oxide. The glass composition may include about 2 weight percent to about 5 weight percent titanium oxide. The glass composition may include about 2.5 weight percent to about 5 weight percent titanium oxide. The glass composition may include about 2.5 weight percent to about 4.5 weight percent titanium oxide. The glass composition may include about 3 weight percent to about 4.5 weight percent titanium oxide. The glass composition may include about 3 weight percent to about 4 weight percent titanium oxide. The glass composition may include about 3.5 weight percent to about 4 weight percent titanium oxide.

[0073] The glass composition may include fluorine.

[0074] The inclusion of fluorine in the glass composition may result in low temperature formation of a eutectic composition. The inclusion of fluorine may improve the glass forming ability of the glass composition. The inclusion of fluorine in the composition may result in an increase in the linear expansion coefficient. The inclusion of fluorine in the composition may improve compatibility with ceramic substrates.

[0075] The glass composition may include at least about 0.1 weight percent fluorine. The glass composition may include at least about 0.5 weight percent fluorine. The glass composition may include at least about 1 weight percent fluorine. The glass composition may include at least about 1.5 weight percent fluorine. The glass composition may include at least about 2 weight percent fluorine. The glass composition may include at least about 2.5 weight percent fluorine. The glass composition may include at least about 3 weight percent fluorine. The glass composition may include at least about 4 weight percent fluorine. The glass composition may include at least about 5 weight percent fluorine.

[0076] The glass composition may include less than about 5 weight percent fluorine. The glass composition may include less than about 4 weight percent fluorine. The glass composition may include less than about 3 weight percent fluorine. The glass composition may include less than about 2.5 weight percent fluorine. The glass composition may include at least about 2 weight percent fluorine. The glass composition may include at least about 1.5 weight percent fluorine. The glass composition may include at least about 1 weight percent fluorine. The glass composition may include at least about 4 weight percent fluorine. The glass composition may include at least about 0.5 weight percent fluorine.

[0077] The glass composition may include about 0.1 weight percent to about 5 weight percent fluorine. The glass composition may include about 0.1 weight percent to about 4 weight percent fluorine. The glass composition may include about 0.1 weight percent to about 3 weight percent fluorine. The glass composition may include about 0.1 weight percent to about 2.5 weight percent fluorine. The glass composition may include about 0.5 weight percent to about 2.5 weight percent fluorine. The glass composition may include about 0.5 weight percent to about 2 weight percent fluorine. The glass composition may include about 1 weight percent to about 2 weight percent fluorine. The glass composition may include about 1 weight percent to about 1.5 weight percent fluorine.

[0078] The heater component may be a heating element.

[0079] The heating element may be a heating blade.

[0080] In some examples, the entire heater may include a coating formed from a glass composition according to the present invention.

[0081] The coating may be a protective coating.

[0082] The article may be a heater. The heater may be a heater for an aerosol generating device.

[0083] The article may be a component of a heater.

[0084] The article may be a heating element. The heating element may be a heating blade.

[0085] It will be appreciated that features described herein in relation to one embodiment may also be applicable to other embodiments, and features described in relation to one embodiment may be equally applied to other embodiments according to the present disclosure. EXAMPLES

[0086] The present invention is defined in the claims. However, below is provided a non-exhaustive list of non-limiting examples. Any one or more of the features of these examples may be combined with any one or more features of any other example, embodiment, or aspect described herein.

[0087] Example 1. A glass composition comprising about 30 weight percent to about 70 weight percent silicon oxide, about 0.1 weight percent to about 10 weight percent aluminum oxide, about 2 weight percent to about 30 weight percent boron oxide, about 2 weight percent to about 40 weight percent lithium oxide, about 0.1 weight percent to about 5 weight percent magnesium oxide, and one or more of calcium oxide, gallium oxide, potassium oxide, samarium oxide, strontium oxide, and titanium oxide. Example 2. The glass composition of example 1, wherein the glass composition comprises at least 0.1 weight percent calcium oxide. Example 3. The glass composition of example 2, wherein the glass composition comprises about 0.1 weight percent to about 5 weight percent calcium oxide. Example 4. The glass composition of example 3, wherein the glass composition comprises about 0.1 weight percent to about 2.5 weight percent calcium oxide. Example 5. The glass composition of any one of Examples 1-4, wherein the glass composition comprises at least 0.1 weight percent gallium oxide. Example 6. The glass composition of example 5, wherein the glass composition comprises about 0.1 weight percent to about 10 weight percent gallium oxide. Example 7. The glass composition of example 6, wherein the glass composition comprises about 0.5 weight percent to about 4 weight percent gallium oxide. Example 8. The glass composition of any of Examples 1-7, wherein the glass composition comprises at least 0.1 weight percent potassium oxide. Example 9. The glass composition of example 8, wherein the glass composition comprises about 0.1 weight percent to about 10 weight percent potassium oxide. Example 10. The glass composition of example 9, wherein the glass composition comprises about 0.1 weight percent to about 6 weight percent potassium oxide. Example 11. The glass composition of any one of Examples 1-10, wherein the glass composition comprises at least 0.1 weight percent samarium oxide. Example 12. The glass composition of example 11, wherein the glass composition comprises about 0.1 weight percent to about 5 weight percent samarium oxide. Example 13. The glass composition of example 12, wherein the glass composition comprises about 0.1 weight percent to about 2.5 weight percent samarium oxide. Example 14. The glass composition of any one of Examples 1-13, wherein the glass composition comprises at least 0.1 weight percent strontium oxide. Example 15. The glass composition of example 14, wherein the glass composition comprises about 0.1 weight percent to about 10 weight percent strontium oxide. Example 16. The glass composition of example 15, wherein the glass composition comprises about 0.1 weight percent to about 4.5 weight percent strontium oxide. Example 17. The glass composition of any one of Examples 1-16, wherein the glass composition comprises at least 0.1 weight percent titanium oxide. Example 18. The glass composition of example 17, wherein the glass composition comprises about 0.1 weight percent to about 10 weight percent titanium oxide. Example 19. The glass composition of example 18, wherein the glass composition comprises about 0.1 weight percent to about 6.5 weight percent titanium oxide. Example 20. The glass composition of any one of Examples 1-19, wherein the glass composition comprises about 40 weight percent to about 60 weight percent silicon oxide. Example 21. The glass composition of any one of Examples 1-20, wherein the glass composition comprises about 0.1 weight percent to about 5 weight percent aluminum oxide. Example 22. The glass composition of any one of Examples 1-21, wherein the glass composition comprises about 4 weight percent to about 20 weight percent boron oxide. Example 23. The glass composition of any one of Examples 1-22, wherein the glass composition comprises about 5 weight percent to about 25 weight percent lithium oxide. Example 24. The glass composition of any one of Examples 1-23, wherein the glass composition comprises about 0.1 weight percent to about 2.5 weight percent magnesium oxide. Example 25. The glass composition of any one of Examples 1-24, wherein the glass composition comprises at least about 0.1 weight percent fluorine. Example 26. The glass composition of example 25, wherein the glass composition comprises about 0.1 weight percent to about 5 weight percent fluorine. Example 27. 27. The glass composition of example 26, wherein the glass composition comprises about 0.1 weight percent to about 2.5 weight percent fluorine. Example 28. An aerosol generating device comprising a heater, a component of the heater comprising a coating, the coating being formed from the glass composition according to any one of Examples 1 to 27. Example 29. 29. The aerosol generating device of Example 28, wherein the heater component is a heating element. Example 30. 30. The aerosol generating device of Example 29, wherein the heating element is a heating blade. Example 31. An aerosol generating system comprising an aerosol generating article and the aerosol generating device according to any one of Examples 28 to 30. Example 32. An article formed from the glass composition according to any one of Examples 1 to 27. [Brief description of the drawings]

[0088] [Figure 1] FIG. 1 illustrates generally one example of an aerosol generating device that includes a heater, the heater component having a coating formed from a glass composition described herein. [Diagram 2] FIG. 2 illustrates a cross-sectional view of components of the heater shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0089] An aerosol generating system for delivering an aerosol to a user typically comprises an aerosol generating device and an aerosol generating article. The aerosol generating device may include an atomizer configured to generate an inhalable aerosol from an aerosol-forming substrate provided in the aerosol generating article. Some known aerosol generating devices include a heater, such as an electric heater or an induction heating device. The heater is configured to heat and vaporize the aerosol-forming substrate to generate an aerosol. A typical aerosol-forming substrate for use in an aerosol generating system is a nicotine formulation, which may be a liquid nicotine formulation including an aerosol former such as glycerin and / or propylene glycol.

[0090] During the use of the aerosol generating device, waste residues may accumulate on the surface of the atomizer. Therefore, the atomizer, especially the heater, should be cleaned regularly to keep it in good working order. However, if the atomizer components have rough surfaces, the surfaces of the components may be difficult to clean effectively, and waste residues may remain after the components are cleaned. Over time, this waste residue accumulates on the atomizer surfaces, which leads to the performance of the atomizer deteriorating.

[0091] Aerosol generating devices having heaters may be particularly susceptible to the problem of waste residue accumulating on the heater surfaces: aerosol generating devices having heated blade type heaters are more likely to have waste residue accumulating on their surfaces compared to other types of heaters.

[0092] It is desirable to provide an aerosol generating system in which the heater components or parts are easy to clean.

[0093] The inventors have realized that the outer surface of one or more components of the heater can be coated with a glass composition to provide a smoother surface. For example, glass compositions are used for similar reasons in dental applications. However, such glass compositions need to be fired at temperatures above 900°C. Firing the heater components at such high temperatures can cause partial melting of parts of the heater, such as the heating tracks that contain gold and silver. This partial melting can cause defects, such as small bubbles, on the surface of the glass coating, which can affect the smoothness of the coating and therefore make cleaning the heater more difficult.

[0094] It would therefore be desirable to provide a glass composition that can be used to provide a smooth outer coating and that can be fired at relatively low temperatures compared to conventional glass compositions.

[0095] The embodiment of FIG. 1 shows a portion of an aerosol generating device 1000 .

[0096] The aerosol-generating device 1000 includes a heater 1010. The heater 1010 is for heating an aerosol-generating substrate contained within an aerosol-generating article. In the embodiment of Figure 1, the heater 1010 includes a heating blade 1020. In other embodiments, the heater 1010 may include alternative heater configurations.

[0097] In the embodiment of FIG. 1, a heater 1010 is mounted within the receiving chamber.

[0098] The aerosol generating device 1000 defines a number of air holes 1030 for engaging the aerosol generating device 1000 and allowing air to flow to an aerosol-generating article received within the receiving chamber.

[0099] The aerosol generating device 1000 has a power source. In the embodiment of FIG.

[0100] The aerosol generating device 1000 includes control electronics 1050 for controlling the operation of the aerosol generating device 1000. The control electronics 1050 may include a processor or the like.

[0101] The example aerosol generating device 1000 illustrated in FIG. 1 is designed to be engaged by an aerosol-generating article to consume an aerosol-forming substrate contained within the article.

[0102] In use, once the aerosol-generating article is engaged with the aerosol-generating device 1000, the user activates the heater 1010. The heater 1010 heats the aerosol-forming substrate to a temperature of approximately 375 degrees Celsius. At this temperature, volatile compounds are released from the aerosol-forming substrate. These compounds condense to form an aerosol. The user then inhales on the oral end of the aerosol-generating article and the aerosol is drawn through a filter provided in the aerosol-generating article and into the user's mouth.

[0103] The embodiment of FIG. 2 shows a cross-sectional view of the heating blade 1020 of FIG.

[0104] The heating blade 1020 has a coating 1060 on at least a portion of its outer surface. In some embodiments, the heating blade 1020 has a coating 1060 on all of its outer surface.

[0105] The heating blade 1020 also includes one or more electrical tracks 1070 .

[0106] Coating 1060 is formed from a glass composition. In one example, the glass composition includes about 30 weight percent to about 70 weight percent silicon oxide, about 0.1 weight percent to about 10 weight percent aluminum oxide, about 2 weight percent to about 30 weight percent boron oxide, about 2 weight percent to about 40 weight percent lithium oxide, about 0.1 weight percent to about 5 weight percent magnesium oxide, and one or more of calcium oxide, gallium oxide, potassium oxide, samarium oxide, strontium oxide, and titanium oxide. In some examples, the glass composition also includes fluorine.

[0107] Exemplary compositions of glass compositions according to the present invention (Examples A, B, C, D and E) were prepared having the compositions shown in Table 1. [Table 1] Table 1

[0108] The compositions of Examples A, B, C, D, and E form deep multicomponent eutectics that combine solubility and high hardness.

[0109] Coatings 1060 having the glass compositions of Examples A, B, C, D, and E are prepared and applied to the heating blade 1020 by: Mixing the starting materials together (see Table 2 below); Pouring the mixed starting materials into a crucible capable of withstanding very high temperatures, such as a crucible made of aluminum oxide or silicon oxide; Melting the starting materials by heating the crucible to 1200°C to 1300°C in an electric furnace for 30 to 60 minutes; granulating the molten material; and drying and grinding the granulated material in a ball mill; sieving the ground material to remove particles larger than 30 μm; mixing the sieved material with an organic liquid to form a fluid; spraying the fluid onto a surface of the heated blade to form a coating; placing the heated blade in a drying oven at 150°C for 10 minutes and then at 300°C for 20 minutes to dry the coating; The heated blade is baked in a furnace at 595°C to 620°C for 20 minutes.

[0110] In some embodiments, instead of being spray painted, the fluid may be screen printed onto the heated blade 1020.

[0111] Thus, glasses having the compositions of Examples A, B, C, D, and E are formed at temperatures approximately 250° C. below the firing temperatures of conventional glasses.

[0112] The glasses formed from the glass compositions of Examples A, B, C, D and E have a compressive strength of 750 to 780 kg / mm 2It can be used as a smooth coating with a Vickers microhardness of .

[0113] Starting materials for the glass compositions of Examples A, B, C, D and E include the following materials shown in Table 2. [Table 2] Table 2

[0114] Table 3 shows the roughness of exemplary glass compositions A, B, C, D and E. [Table 3] Table 3

[0115] The baseline roughness (Ra) of industrial glass is 0.135 μm.

[0116] Thus, the data in Table 3 shows that the glass compositions of Examples A, B, C, D and E all form glasses with much lower roughness than industrial glasses. In fact, the glasses formed from the glass compositions of Examples B and C have the smoothest surfaces of the Examples.

[0117] Thus, the glass made using the glass compositions of Examples A, B, C, D and E can provide a smooth, hard surface that is free of defects and can be formed at relatively low firing temperatures. Thus, when the glass is used as a coating for the heater components of an aerosol generating device, the resulting smooth surface makes the components easier to clean. The relatively low firing temperature, about 250°C lower than typical firing temperatures, means that the delicate electrical tracks in the heater are not damaged during the firing process. This also improves the smoothness of the resulting exterior surface of the components. By making the heater components easier to clean, degradation of the heater is reduced, improving the overall performance of the aerosol generating device.

[0118] The above-described embodiments are not intended to limit the scope of the claims. Other embodiments consistent with the above-described exemplary embodiments will be apparent to those skilled in the art. Features described with respect to one embodiment may also be applicable to other embodiments.

Claims

1. Includes a heater, the heater component includes a coating; The coating comprises: about 30 weight percent to about 70 weight percent silicon oxide; about 0.1 weight percent to about 10 weight percent aluminum oxide; about 2 weight percent to about 30 weight percent boron oxide; about 2 weight percent to about 40 weight percent lithium oxide; about 0.1 weight percent to about 5 weight percent magnesium oxide; and one or more of calcium oxide, gallium oxide, potassium oxide, samarium oxide, strontium oxide, and titanium oxide.

2. 2. The aerosol generating device of claim 1, wherein the glass composition comprises at least 0.1 weight percent calcium oxide.

3. 3. The aerosol generating device of claim 2, wherein the glass composition comprises about 0.1 weight percent to about 5 weight percent calcium oxide.

4. 4. The aerosol generating device of claim 3, wherein the glass composition comprises about 0.1 weight percent to about 2.5 weight percent calcium oxide.

5. 5. The aerosol generating device according to claim 1, wherein the glass composition comprises at least 0.1 weight percent of gallium oxide.

6. 6. The aerosol generating device of claim 5, wherein the glass composition comprises from about 0.1 weight percent to about 10 weight percent gallium oxide.

7. 7. The aerosol generating device according to claim 1, wherein the glass composition comprises at least 0.1 weight percent samarium oxide.

8. 8. The aerosol generating device according to claim 1, wherein the glass composition comprises at least 0.1 percent by weight of strontium oxide.

9. 9. The aerosol generating device according to claim 1, wherein the glass composition comprises at least 0.1 weight percent titanium oxide.

10. 10. The aerosol generating device according to claim 1, wherein the glass composition comprises from about 40 percent to about 60 percent by weight of silicon oxide.

11. The aerosol generating device of claim 1 , wherein the heater component is a heating element.

12. The aerosol generating device according to claim 11 , wherein the heating element is a heating blade.

13. Aerosol-generating articles, and An aerosol generating system comprising the aerosol generating device according to any one of claims 1 to 12.

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