发明名称 |
Ceramic heater and method for manufacturing the same |
摘要 |
<p>A ceramic heater 1 includes a silicon nitride ceramic substrate 13 and a resistance-heating member 10 embedded in the silicon nitride ceramic substrate 13. The silicon nitride ceramic substrate 13 contains oxygen derived from a sintering aid at an average concentration of 0.4-3.2% by weight in a surface layer portion extending from the surface thereof to a depth of 1 mm. The ceramic heater 1 can be manufactured by firing through hot pressing. A firing jig for use in a firing process has an SiC-C composite layer which is formed therein along the surface of cavities thereof while having a predetermined depth as measured from the cavity surface.</p> |
申请公布号 |
EP1282341(A2) |
申请公布日期 |
2003.02.05 |
申请号 |
EP20020016873 |
申请日期 |
2002.07.30 |
申请人 |
NGK SPARK PLUG CO., LTD |
发明人 |
TATEMATSU, KAZUHO;KONISHI, MASAHIRO;YAMAGUCHI, TAKESHI |
分类号 |
H05B3/14;H05B3/10;C04B35/584;F23Q7/00;H05B3/18;H05B3/48;(IPC1-7):H05B3/14 |
主分类号 |
H05B3/14 |
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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