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US 12,767,588 B2Granted
Glass containing crystalline phase
AssigneeOhara Inc.
InventorsSaya Kikkawa, Toshitaka Yagi, Ayano Mori
Life of this patent
Estimating the term…
Abstract
Provided is a glass containing a crystalline phase, the glass including at least one crystalline phase selected from the group consisting of cristobalite, lithium disilicate, and petalite, in which an average linear expansion coefficient at 100° C. to 300° C. is 85×10−7/° C. or more, and a glass transition point is 680° C. or higher.
Claims13
A glass containing a crystalline phase, comprising:
- crystalline phases including cristobalite and lithium disilicate;
- wherein the glass comprises, in mass % in terms of oxides,
- a Li2O component at a content of 8.1% or more and 13.0% or less;
- wherein, in mass % in terms of oxides,
- [(a content of a P2O5 component+a content of a K2O component+a content of a MgO component+a content of an Al2O3 component)/a content of a ZrO2 component] is 4.0 or less;
- wherein an average linear expansion coefficient at 100° C. to 300° C. is 85×10−7/° C. or more, and
- a glass transition point is 680° C. or higher.
4 more elements
A glass containing a crystalline phase, comprising:
- crystalline phases including cristobalite and lithium disilicate;
- wherein the glass comprises SiO2 component, Al2O3 component, and Li2O component;
- wherein the glass comprises, in mass % in terms of oxides,
- the Li2O component at a content of 8.1% or more and 13.0% or less;
- and a ZrO2 component at a content of 2.0% or more;
- wherein, in mass % in terms of oxides,
- [(a content of the SiO2 component+the content of the Li2O component)/a content of the Al2O3 component] is more than 22.94;
- wherein an average linear expansion coefficient at 100° C. to 300° C. is 85×10−7/° C. or more, and
- a glass transition point is 680° C. or higher.
6 more elements
Dependencies are inferred from the claim text.