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Fe-containing low-temperature sealing glass as well as preparation and use methods thereof

A technology of sealing glass and low temperature, which is applied in the field of low-temperature precision packaging glass, can solve the problems of valence change, difficulty in ensuring the stability of sealing glass and refractive index stability, etc., and achieve improved sealing performance, low price and stable process Effect

Active Publication Date: 2017-03-08
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a recent study by our research group found that the Bi element in the glass is prone to valence changes during the heating process (Bi 3+ To Bi 5+ transformation), it is difficult to ensure the stability of the sealing glass, especially the stability of the refractive index

Method used

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  • Fe-containing low-temperature sealing glass as well as preparation and use methods thereof
  • Fe-containing low-temperature sealing glass as well as preparation and use methods thereof
  • Fe-containing low-temperature sealing glass as well as preparation and use methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] According to the proportioning of each component of the embodiment 1 of table 1, take respectively analytical pure raw material (B 2 o 3 、 Bi 2 o 3 , ZnO, Fe 2 o 3 ), use a planetary ball mill for 24 hours to mix evenly; then put the powder into a platinum crucible, place it in the air atmosphere of a box-type resistance furnace, heat it to 1000°C at 3°C / min, and keep it warm for 1 hour; then, take out the crucible, Pour the melt into deionized water for rapid cooling, and dry to obtain fragments of glass melt; grind and pass through a 100-mesh sieve to obtain glass powder. Mix glass powder with polyvinyl alcohol, fish oil, ethanol and toluene (80%, 2%, 1%, 10%, 7% by weight) to form a slurry, and disperse evenly in a ball mill; tape casting, natural Dry, then cut into the embryo body of the desired shape; place the embryo body on the part to be sealed, heat up in an electric furnace at a rate of 2°C / min, keep it at 400°C for 1 hour, and then heat up at a rate of 2...

Embodiment 2

[0035] According to the proportioning of each component of the embodiment 2 of table 1, take respectively analytical pure raw material (B 2 o 3 、 Bi 2 o 3 , ZnO, Fe 2 o 3), and mixed evenly with a planetary ball mill for 24 hours; then put the powder into a platinum crucible, place it in the air atmosphere of a box-type resistance furnace, heat it to 980°C at 3°C / min, and keep it warm for 1 hour; then, take out the crucible, Pour the melt into deionized water for rapid cooling, and dry to obtain fragments of glass melt; grind and pass through a 100-mesh sieve to obtain glass powder. Mix glass powder with methylcellulose, polyvinyl alcohol, n-butanol and acetone (82%, 2%, 2%, 8%, 6% by weight) to form a slurry, and disperse evenly in a ball mill; Stretching, drying naturally, and then cutting the embryo body into the desired shape; placing the embryo body on the part to be sealed, heating it in an electric furnace at a rate of 2°C / min, keeping it at 380°C for 1 hour, and t...

Embodiment 3

[0037] According to the proportioning ratio of each component in Table 1 Example 3, the analytically pure raw material (B 2 o 3 、 Bi 2 o 3 , ZnO, Fe 2 o 3 ), use a planetary ball mill for 24 hours to mix evenly; then put the powder into a platinum crucible, place it in the air atmosphere of a box-type resistance furnace, heat it to 950°C at 3°C / min, and keep it warm for 1 hour; then, take out the crucible, Pour the melt into deionized water for rapid cooling, and dry to obtain fragments of glass melt; grind and pass through a 100-mesh sieve to obtain glass powder. Mix glass powder with epoxy resin, polyacrylamide, isopropanol and toluene (84%, 1.5%, 0.5%, 9%, 5% by weight) to form a slurry, and disperse evenly in a ball mill; casting Shaping, drying naturally, and then cutting into the embryo body of the desired shape; place the embryo body on the part to be sealed, heat up at a rate of 2°C / min in an electric furnace, keep it at 360°C for 1 hour, and then heat it at 2°C / m...

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Abstract

The invention discloses Fe-containing low-temperature sealing glass as well as preparation and use methods thereof. The Fe-containing low-temperature sealing glass is prepared from the following raw materials: B2O3, Bi2O3, ZnO and Fe2O3. Through the coordinating function of Bi2O3 and B2O3, the softening temperature of glass is reduced, and the low-temperature sealing is realized; by the adding of Fe2O3, the softening temperature of the sealing glass can be further reduced, and the refractive index of the glass can be stabilized; and furthermore, magnetic Fe3O4 generated inside can improve the automatic application efficiency of a sealing process. The preparation raw materials are simple and readily available; the process is stable, and the cost is reduced; and the Fe-containing low-temperature sealing glass is applicable to the field of photoelectric materials and other low-temperature precision packages.

Description

technical field [0001] The invention belongs to the field of low-temperature precision sealing glass, and in particular relates to Fe-containing low-temperature sealing glass and a preparation and use method thereof. Background technique [0002] Low-temperature sealing glass (melting temperature and sealing temperature <600°C), due to its good heat resistance and chemical stability, high mechanical strength, is widely used in electronic paste, electric vacuum and microelectronics technology, energy, aerospace, In many fields such as automobiles, such as in solid oxide fuel cells (SOFC), the performance of the sealing material directly leads to the actual performance of the battery; in the application of electronic materials, the stability of the sealing glass also affects the LED The light decay rate has a great influence. At the same time, sealing glass can also be used for mutual sealing between glass, ceramics, metals and semiconductors. In view of the environmental...

Claims

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Application Information

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IPC IPC(8): C03C8/24C03C6/00
CPCC03C1/00C03C8/24
Inventor 张腾林城苏鸿斌林德伟
Owner FUZHOU UNIV
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