发明名称 |
METHOD AND APPARATUS FOR SURFACE TREATMENT |
摘要 |
Particles of a layer-forming agent containing at least one element for forming a surface layer of e.g. a carbide on the material to be treated are disposed in a furnace below and/or at the side of the material to be treated. A fluidizing gas is introduced into the furnace below the layer-forming agent for fluidizing a powder of alumina or other refractory material to form a fluidized bed above the layer-forming agent, while the agent is not fluidized. The furnace is heated and a solid halide is supplied into the furnace below the layer-forming agent. The halide is sublimable to produce a gas which activates the element, so that it may combine with a particular element which the material to be treated contains, whereby the surface layer is formed thereon. An apparatus for forming such a surface layer is also provided. |
申请公布号 |
CA1336150(C) |
申请公布日期 |
1995.07.04 |
申请号 |
CA19880574402 |
申请日期 |
1988.08.11 |
申请人 |
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO |
发明人 |
ARAI, TOHRU;TAKEDA, HIROMASA;KAWAURA, HIROYUKI |
分类号 |
C23C10/28;C04B35/56;C04B35/58;C23C8/06;C23C12/02;C23C16/32;C23C16/34;C23C16/36;C23C16/442;C23C16/448;H01G13/00;H01G17/00;H01L21/56 |
主分类号 |
C23C10/28 |
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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