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Glass composition for sealing and sealed material

A glass composition and sealing material technology, which can be used in instruments, discharge lamps, electrical components, etc., and can solve problems such as insufficient time

Inactive Publication Date: 2009-07-15
NIPPON ELECTRIC GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, tin phosphate-based glasses (also referred to as SnO-P 2 o 5 Glass) has basically the same characteristics as lead borate-based glass in various properties such as thermal expansion coefficient, so it is expected as a substitute for it, but it is still inferior to lead borate-based glass in characteristics such as water resistance and thermal stability.

Method used

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  • Glass composition for sealing and sealed material
  • Glass composition for sealing and sealed material
  • Glass composition for sealing and sealed material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0091] Hereinafter, the sealing glass composition and sealing material of the present invention will be described in detail based on examples.

[0092] Tables 1 to 3 show examples (samples a to n) of the sealing glass composition of the present invention, and Table 4 shows comparative examples (samples p, q).

[0093] [Table 1]

[0094]

[0095] [Table 2]

[0096]

[0097] [table 3]

[0098]

[0099] [Table 4]

[0100]

[0101] Each glass sample was prepared as follows. First, the masterbatch raw materials are prepared according to the glass compositions shown in Tables 1 to 4, and N 2 Gas based on N with a flow rate of 1L / min 2 The gas is bubbling into the molten glass, while using an alumina crucible, N in the electric furnace 2 Melt at 900°C in the atmosphere for 2 hours, then reduce the pressure to 50 Torr (6.65kPa) while keeping the inside of the electric furnace at 900°C, and maintain the reduced pressure for 1 hour to remove the gas components present ...

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Abstract

To obtain a glass composition for sealing that not only improves the water resistance of tin phosphate glass but also attains appropriate sealing in low-oxygen atmosphere, especially vacuum atmosphere, and that further allows sealing at low temperature such as 490 DEG C or below, excelling in thermal stability, and obtain a relevant sealed material. There is provided a glass composition for sealing characterized by having a glass composition containing, by molar percentage in terms of oxide, 30 to 80% SnO, 10 to 25% (not including 25%) P2O5, 0 to 20% B2O3, 0 to 20% ZnO, 0 to 10% SiO2, 0 to 10% Al2O3, 0 to 20% WO3 and 0 to 20% R2O (R represents at least one of Li, Na, K and Cs) and characterized by being employed in sealing in low-oxygen atmosphere, especially vacuum atmosphere.

Description

technical field [0001] The present invention relates to a glass composition for sealing and a sealing material using the same, and relates to a glass composition for use on a flat surface such as a plasma display panel (hereinafter referred to as PDP), a field emission display (hereinafter referred to as FED), or a fluorescent display tube (hereinafter referred to as VFD). Suitable sealing glass for sealing of display devices, sealing of optical components such as lens caps and LD covers, and sealing of electronic components (including electronic component storage containers) such as IC packages, crystal oscillators, and piezoelectric oscillators such as surface acoustic wave elements Compositions and sealing materials. Background technique [0002] Conventionally, glass has been used as a sealing material for flat panel display devices and the like. Glass is superior in chemical durability and heat resistance compared to resin-based adhesives, and is suitable for ensuring ...

Claims

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Application Information

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IPC IPC(8): C03C8/08C03C8/24G02B1/02H01J9/26H01J11/02
CPCC03C27/06H01J2217/49H01J9/261H01J2329/00C03C27/00C03C8/08C03C8/24G02B1/02H01J9/26
Inventor 菊谷武民井关淳一
Owner NIPPON ELECTRIC GLASS CO LTD
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