发明名称 |
Process for protecting carbon containing composite material from oxidation and products made by this process. |
摘要 |
<p>A process is provided for obtaining an article which is made of a carbon-containing composite material and which is protected against oxidation. The composite material, which is obtained by densifying a porous fibrous texture with a matrix and which exhibits a residual internal porosity, is impregnated under a vacuum with an alkaline compound in a liquid solution. The article is dried and heat-treated at a temperature sufficient to cause the alkaline compound to line the surfaces of the internal pores, thereby constituting the residual porosity and forming a continuous auto-cicatrizing internal protective coating. An additional external protective layer comprised of a wear- and oxidation-resistant material may be applied.</p> |
申请公布号 |
EP0375537(B1) |
申请公布日期 |
1995.03.01 |
申请号 |
EP19890403544 |
申请日期 |
1989.12.19 |
申请人 |
SOCIETE EUROPEENNE DE PROPULSION |
发明人 |
CAVALIER, JEAN-CLAUDE;NALE, ALAIN |
分类号 |
C04B35/52;C04B41/50;C04B41/52;C04B41/85;C04B41/89;(IPC1-7):C04B41/50 |
主分类号 |
C04B35/52 |
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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