| 发明名称 |
METHOD FOR THE PRODUCTION OF A FORM BODY COMPRISING OR CONTAINING A LITHIUM SILICATE GLASS CERAMIC AS WELL AS FORM BODIES |
| 摘要 |
The invention relates to a method for the production of a medical form body comprising or containing a lithium silicate glass ceramic. To allow the strength of the form body to be increased compared to the prior art, it is proposed that in a preform body comprising or containing a lithium silicate glass ceramic with a geometry that corresponds to the form body a surface compressive stress is created by replacement of lithium ions with alkali ions of greater diameter, wherein after substitution of the ions the preform body is used as the form body. |
| 申请公布号 |
US2016229742(A1) |
申请公布日期 |
2016.08.11 |
| 申请号 |
US201615010431 |
申请日期 |
2016.01.29 |
| 申请人 |
DENTSPLY International Inc. |
发明人 |
Wondraczek Lothar;Fecher Stefan;Völkl Lothar |
| 分类号 |
C03C21/00;C03C4/00;C03B25/02;C03C10/00 |
主分类号 |
C03C21/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Method for the production of a medical or dental form body or part thereof comprising the steps of:
providing a preform body comprising a lithium silicate glass ceramic with a geometry that corresponds to the form body; creating a surface compressive stress by replacement of lithium ions with alkali ions of greater diameter; wherein after substitution of the ions, the preform body is used as the form body or part thereof. |
| 地址 |
York PA US |
