发明名称 |
PROCESS FOR THE PREPARATION OF A SINTERED CERAMIC, CERAMIC THUS OBTAINED AND SPARK PLUG COMPRISING IT |
摘要 |
Process for the preparation of a ceramic wherein: 50% to 75% by weight of a compound intended to form a conductive phase, and 25 % to 50% by weight of one or more materials allowing the formation of insulating phases composed of silicon nitride and modified silicon oxynitride are mixed in a receptacle containing a liquid after a thermal treatment leading to sintering of the ceramic; this mixture is subjected to grinding, drying and sieving operations; this mixture is pressed; and this mixture is sintered so as to obtain a ceramic with a porosity of between 0 and 30%. The sintering is carried out under a pressure of at least 50 bar of a gas which is inert towards the constituents of the mixture. Ceramic thus obtained and spark plug comprising it.
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申请公布号 |
US2009018008(A1) |
申请公布日期 |
2009.01.15 |
申请号 |
US20080141139 |
申请日期 |
2008.06.18 |
申请人 |
VIBRO METER FRANCE |
发明人 |
JANKOWIAK AURELIEN;BLANCHART PHILIPPE;TRENIT FREDERIC |
分类号 |
C04B38/00;C04B35/565;C04B35/597 |
主分类号 |
C04B38/00 |
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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