Microcrystalline glass and microcrystalline glass substrate

China Patent

APP PUB NO CN-113121115-A
SERIAL NO

202110442911

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Abstract

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The invention aims to provide a microcrystalline glass and a microcrystalline glass substrate. The microcrystalline glass or the substrate is suitable for protective members such as optical equipment, has high visible light transmittance and good color balance, also has high strength, and is prepared at low cost. The invention also aims to provide the parent glass adhesionA microcrystalline glass having a low degree and hardly causing devitrification of a mother glass. The microcrystalline glass contains SiO in mol% in terms of oxide230.0-70.0% of component and Al2O38.0 to 25.0 percent of component and Na20 to 25.0 percent of O component, 0 to 25.0 percent of MgO component, 0 to 30.0 percent of ZnO component and TiO20 to 10.0 percent of component (Al)2O3/(MgO+ZnO)]Has a value of 0.5 to 2.0, and a crystal phase containing RAl2O4、RTi2O5、R2TiO4、R2SiO4、RAl2Si2O8And R2Al4Si5O18At least 1 selected from the above.

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Patent Owner(s)

Patent OwnerAddress
OHARA KKNot Provided

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Inventor(s)

Inventor Name Address
MOMONO KIYOYUKI -

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