发明名称 |
COLORING OF CERAMICS BY ATMOSPHERE CONTROL |
摘要 |
Methods of forming a colored ceramic body or dental article are described that include: (a) forming a body from a ceramic-containing powder; (b) shaping the body into a desired shape; and (c) firing the shaped body in an atmosphere comprising at least one coloring agent. Methods of forming a fully dense ceramic body that lacks discoloration, are also described which include: (a) forming a body from a ceramic-containing powder; (b) shaping the body into a desired shape; (c) placing the shaped body in a firing atmosphere containing at least one impurity that promote discoloration of the ceramic body; (d) placing the ceramic body in proximity to an atmosphere powder; and (e) firing the shaped body in proximity to an atmosphere powder; wherein the atmosphere powder acts as at least one of a barrier and a getter for the at least one impurity. |
申请公布号 |
EP2056737(A2) |
申请公布日期 |
2009.05.13 |
申请号 |
EP20070811406 |
申请日期 |
2007.08.17 |
申请人 |
PENTRON CERAMICS, INC. |
发明人 |
KHAN, AJMAL;BRODKIN, DMITRI G. |
分类号 |
A61C13/00;B28B5/00;C04B35/486;C04B35/63;C04B41/45 |
主分类号 |
A61C13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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