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Method for feeding molten silicon composition into a porous substrate
Method for feeding molten silicon composition into a porous substrate
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机译:将熔融硅组合物进料到多孔基材中的方法
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PCT No. PCT/FR96/01598 Sec. 371 Date May 13, 1998 Sec. 102(e) Date May 13, 1998 PCT Filed Oct. 14, 1996 PCT Pub. No. WO97/18176 PCT Pub. Date May 22, 1997A plurality of substrates (10) are disposed in alternation and in contact with layers (12) which constitute sources of metal-based composition, each layer comprising a majority phase formed by the metal-based composition and a minority phase suitable for forming a structure for retaining and draining the metal-based composition when it is in the molten state. The batch is heated to a temperature greater than the melting temperature of the metal-based composition such that the metal-based composition in the molten state can migrate from each source through the adjacent surface of the, or each, substrate adjacent to the source towards the inside of the substrate. The invention seeks in particular to incorporate a silicon-based composition in a thermostructural composite material, in particular a carbon-carbon composite material for siliciding purposes.
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