Sealing glass composition
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United States of America Patent
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Nov 8, 2016
Grant Date -
Dec 17, 2015
app pub date -
Dec 23, 2013
filing date -
Dec 25, 2012
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Abstract
Disclosed is a high-strength, high-expansion crystallized glass composition that, by being fired at not less than 850° C., can be used at high temperatures at not less than 950° C. The composition is a sealing glass composition substantially free of boron oxide and comprising the following components, in mol %, SiO2: 40-50%, ZnO: 16-30%, BaO: 5-25%, CaO: 0-25%, Al2O3: 0-5%, and RO: not less than 44% (wherein R denotes one or more species of Mg, Ca, Sr, Ba, and Zn).
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