发明名称 |
Coated filaments. |
摘要 |
A ceramic filament comprising a tungsten core and an outer layer of silicon carbide, the tungsten core and the outer layer being separated by an intermediate layer of titanium carbide. Also claimed is a process for the deposition of a titanium carbide coating on a tungsten filament which comprises heating the filament and passing the heated filament through a deposition chamber containing gases which on contact with the hot filament deposit the coating, the gases comprising a hydrocarbon and a titanium halogenated compound, said titanium halogenated compound contacting the tungsten filament before the hydrocarbon. <IMAGE> |
申请公布号 |
EP0598491(A1) |
申请公布日期 |
1994.05.25 |
申请号 |
EP19930308280 |
申请日期 |
1993.10.18 |
申请人 |
THE BRITISH PETROLEUM COMPANY P.L.C. |
发明人 |
LEPETITCORPS, YANN, UNIVERSITE DE BORDEAUX;SHATWELL, ROBERT ALAN |
分类号 |
C23C16/32;D01F8/18;D01F9/08;D06M11/00;D06M11/73;D06M11/83;D06M101/00 |
主分类号 |
C23C16/32 |
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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