发明名称 |
CERAMIC HEATER AND GLOW PLUG |
摘要 |
Disclosed is a ceramic heater capable of preventing failures due to the thermal stress, such as cracks, and corrosion by a calcium component. The ceramic heater has a heating element including at least one substance selected from silicides, nitrides and carbides of molybdenum and silicides, nitrides and carbides of tungsten as a main component, and a base mainly containing silicon nitride in which the heating element is embedded, wherein the base includes: a rare earth element component in an amount from 4 to 25% by mass in terms of an oxide thereof; a silicide of chromium in an amount from 1 to 8% by mass in terms of chromium silicide; and an aluminum component in an amount from 0.02 to 1.0% by mass in terms of aluminum nitride.
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申请公布号 |
EP2107854(A1) |
申请公布日期 |
2009.10.07 |
申请号 |
EP20070737190 |
申请日期 |
2007.05.18 |
申请人 |
NGK SPARK PLUG CO., LTD. |
发明人 |
FUNAKI, KOJI;IKAI, YOSHIHITO;SEKIGUCHI, YUTAKA;MITSUOKA, TAKESHI;YOKOYAMA, YUTAKA |
分类号 |
H05B3/10;F23Q7/00;H05B3/48 |
主分类号 |
H05B3/10 |
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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