Glass ceramics and method for producing glass ceramics
June 20, 2022
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Application Number:
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200710110639.5
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Application date:
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2007.06.06
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name:
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Glass ceramics and method for producing glass ceramics
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Public (announcement) number:
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CN101085698
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Public (announcement) day:
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2007.12.12
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Main classification number:
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C03C3/083(2006.01)I
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The original application number of the division:
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Classification number:
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C03C3/083(2006.01)I; C03C3/097(2006.01)I; C03C3/087
(2006.01) I; C03C3/095 (2006.01) I; C03C10/00 (2006.01) I;
C03C10/14(2006.01)I
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Award day:
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priority:
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2006.6.6 JP 2006-156878
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Application (patent) person:
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Kohara Co., Ltd.
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address:
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Kanagawa Prefecture, Japan
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Invention (design) person:
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Kawashima Kangzhi; Goto Straight Snow
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International application:
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International announcement:
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Enter country date:
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Patent agency:
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Beijing Linda Liu Intellectual Property Agency
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agent:
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Liu Xinyu; Li Maojia
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Summary
The present invention provides a crystallized glass and a method for producing the same, which can eliminate cracks and damage during production of a large-sized molded article in a SiO2-Al2O3 system or a Li2O-Al2O3-SiO2 system glass ceramic. Uniform quality, efficient and stable production. The crystal precipitation peak temperature width obtained by differential thermal analysis of the amorphous glass containing the SiO 2 and Al 2 O 3 as the precursor is 22° C. or more, and preferably the total amount of the TiO 2 component and the ZrO 2 component is 3.0 to less than 4.3%. The range, whereby the desired glass ceramics can be obtained.
