| Application Number: | 200710110639.5 | Application date: | 2007.06.06 |
| name: | Glass ceramics and method for producing glass ceramics | ||
| Public (announcement) number: | CN101085698 | Public (announcement) day: | 2007.12.12 |
| Main classification number: | C03C3/083(2006.01)I | The original application number of the division: | |
| Classification number: | 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 | ||
| Award day: | priority: | 2006.6.6 JP 2006-156878 | |
| Application (patent) person: | Kohara Co., Ltd. | ||
| address: | Kanagawa Prefecture, Japan | ||
| Invention (design) person: | Kawashima Kangzhi; Goto Straight Snow | International application: | |
| International announcement: | Enter country date: | ||
| Patent agency: | Beijing Linda Liu Intellectual Property Agency | agent: | Liu Xinyu; Li Maojia |
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.
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