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Glass composition and glass powder

A glass composition and glass powder technology, which is applied in the field of glass composition and glass powder, can solve the problems of unstable electrical conductivity of the resistance composition, lack of conductivity of the glass composition, and the inability of the glass composition to flow, etc., to achieve the realization of the characteristics Stabilization, low glass transition temperature, and life-extending effects

Active Publication Date: 2019-02-26
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the resistance composition using this glass composition has the following problems: the glass composition only functions as a binder, and the glass composition itself lacks conductivity, so it needs to contain a large amount of expensive ruthenium oxide, and the production cost becomes higher; or due to the high glass transition temperature, the glass composition cannot be sufficiently flowed during sintering, and the conductivity of the resistance composition becomes unstable
Therefore, this glass composition is used as a conductive paste for electrodes of solar cells, but there is a problem that it contains a large amount of B 2 o 3 , does not contain Al 2 o 3 Such components used to improve the bondability as a glass structure cannot obtain good weather resistance such as water resistance

Method used

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  • Glass composition and glass powder
  • Glass composition and glass powder

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Experimental program
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Embodiment

[0089] Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to the examples. Examples 1-11 are examples, and Examples 12-15 are comparative examples.

example 1～15

[0091] The glass composition was produced as a sheet-shaped glass by the following method, and glass powder was produced from the sheet-shaped glass. The particle size distribution of the glass powder was determined, and the glass transition temperature of the glass composition was determined using the glass powder. The electrical conductivity and water resistance of the glass composition were evaluated using sheet glass.

[0092]

[0093] Raw material powders were blended and mixed so as to obtain the composition shown in Table 1, and melted in a crucible in an electric furnace at 900 to 1200° C. for 30 minutes to 1 hour to form a thin plate glass made of a glass composition. The electrical conductivity and water resistance were evaluated using the obtained sheet glass.

[0094]

[0095] In each example, dry pulverization and wet pulverization were combined to pulverize the obtained sheet-shaped glass as follows to adjust the particle size distribution. The particle size ...

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Abstract

The invention provides a glass composition which has excellent conductivity and weather fastness and which can be sintered at a low temperature and glass powder including the glass composition. The glass composition is characterized in that the composition includes, by mass%, based on oxides, 40-61% of Bi2O3, 20-30% of MoO3, and 0.1-6.0% of B2O3. The glass powder includes the glass composition, and has a D<50> of 0.3-1.8 [mu]m when the 50% particle diameter by volume in accumulated particle size distribution is defined as the D<50>.

Description

technical field [0001] The present invention relates to a glass composition that is characterized by electrical conductivity, is excellent in weather resistance, especially water resistance, and can be sintered at low temperature, and also relates to a glass composition that can be used to form various resistance components such as chip resistors and thick film circuits. , Resistors used in multilayer circuit boards, various laminated composite parts, etc., and conductive pastes used for electrode formation of solar cells, etc., and glass compositions used in the conductive pastes. Background technique [0002] Conventionally, resistors used in the above-mentioned circuits and components are formed of a resistor composition mainly composed of a conductive component and a glass composition. The resistor composition is mainly in the form of paste or paint, printed in a predetermined shape on an alumina substrate on which electrodes are formed, a ceramic composite member, etc.,...

Claims

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Application Information

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IPC IPC(8): C03C12/00C03C3/23C03C3/21
CPCC03C3/21C03C3/23C03C12/00C03C3/122C03C3/145C03C3/125C03C4/14
Inventor 中北要佑
Owner ASAHI GLASS CO LTD