Lamination member and glass composition
AssigneeAGC Inc.
InventorsYu Hanawa, Shuhei Ogawa, Seiji Inaba
Life of this patent
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Abstract
The present invention relates to a laminated member, including: a glass member having a linear transmittance at a wavelength of 850 nm of 80% or more; a bonding layer containing a resin and lying on the glass member; and a Si—SiC member lying on the bonding layer, in which the glass member includes predetermined amounts of SiO2, Al2O3, B2O3, and P2O5, the Si—SiC member has an average linear expansion coefficient α at 20 to 200° C. of 2.85 to 4.00 ppm/° C., and has an average linear expansion coefficient β at 20 to 200° C. of 1.50 to 5.00 ppm/° C., and the laminated member has an absolute value |α-β|, which is a value obtained by subtracting β from α, of 2.00 ppm/° C. or less.
Claims19
A laminated member, comprising:
- a glass member having a linear transmittance at a wavelength of 850 nm of 80% or more;
- a bonding layer containing a resin and lying on the glass member;
- and
- a Si—SiC member lying on the bonding layer, wherein
- the glass member comprises, as represented by mole percent based on oxides, 55.0 mol % to 85.0 mol % of SiO2, 1.5 mol % to 22.0 mol % of Al2O3, 2.0 mol % to 14.0 mol % of B2O3, and 0 mol % to 5.0 mol % of P2O5,
- the glass member has a total content of the SiO2, the Al2O3, the B2O3, and the P2O5 of 70.0% to 97.0% as represented by mole percent based on oxides,
- the Si—SiC member has an average linear expansion coefficient α at 20° C. to 200° C. of 2.85 ppm/° C. to 4.00 ppm/° C.,
- the glass member has an average linear expansion coefficient β at 20° C. to 200° C. of 1.50 ppm/° C. to 5.00 ppm/° C., and
- the laminated member has an absolute value |α−β|, which is a value obtained by subtracting the average linear expansion coefficient β of the glass member at 20° C. to 200° C. from the average linear expansion coefficient α of the Si—SiC member at 20° C. to 200° C., of 2.00 ppm/° C. or less.
A glass composition used for a glass member in a laminated member, the laminated member comprising the glass member, a bonding layer containing a resin and lying on the glass member, and a Si—SiC member lying on the bonding layer, wherein
- the glass composition has a linear transmittance at a wavelength of 850 nm of 80% or more,
- the glass composition comprises, as represented by mole percent based on oxides, 55.0 mol % to 85.0 mol % of SiO2, 1.5 mol % to 22.0 mol % of Al2O3, 2.0 mol % to 14.0 mol % of B2O3, and 0 mol % to 5.0 mol % of P2O5,
- the glass composition has a total content of the SiO2, the Al2O3, the B2O3, and the P2O5 of 70.0% to 97.0% as represented by mole percent based on oxides,
- the glass composition has an average linear expansion coefficient β at 20° C. to 200° C. of 1.50 ppm/° C. to 5.00 ppm/° C.,
- the glass composition is used for a laminated member comprising a Si—SiC member having an average linear expansion coefficient α at 20° C. to 200° C. of 2.85 ppm/° C. to 4.00 ppm/° C. so that the laminated member has an absolute value |α−β|, which is a value obtained by subtracting the average linear expansion coefficient β of the glass member at 20° C. to 200° C. from the average linear expansion coefficient α of the Si—SiC member at 20° C. to 200° C., of 2.00 ppm/° C. or less.
Dependencies are inferred from the claim text.