发明申请
- 专利标题： METHOD TO INCREASE THE STRENGTH OF A FORM BODY OF A LITHIUM SILICATE GLASS CERAMIC
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申请号： US17750839申请日： 2022-05-23
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公开(公告)号： US20220281770A1公开(公告)日： 2022-09-08
- 发明人: Stefan FECHER , Lothar VÖLKL
- 申请人： DENTSPLY SIRONA Inc.
- 申请人地址： US PA York
- 专利权人： DENTSPLY SIRONA Inc.
- 当前专利权人： DENTSPLY SIRONA Inc.
- 当前专利权人地址： US PA York
- 优先权： DE102015108173.3 20150522
- 主分类号： C03C21/00
- IPC分类号： C03C21/00 ; C03C4/00 ; C03C3/097 ; A61K6/804 ; A61K6/818 ; A61K6/822 ; A61K6/824 ; A61K6/833 ; A61K6/853 ; C03B25/00 ; C03C10/00
摘要：
The invention relates to a medical form body of lithium silicate glass ceramic. To increase its strength it is proposed that in the form body comprising lithium silicate glass or containing lithium silicate glass the lithium ions are replaced by alkali ions of greater diameter to generate a surface compressive stress. To this end the form body is covered with a melt containing an alkali metal for which an aliquoted quantity of salt containing the alkali metal is used.
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