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PRODUCTION OF ARTICLES FROM CERAMIC-MATRIX COMPOSITES

机译:用陶瓷基复合材料生产制品

摘要

FIELD: metallurgy.;SUBSTANCE: claimed process comprises the steps that follow. Carcass is made of heat-resistant fibres and partially compacted by carbon-ceramic matrix material with the help of appropriate precursors of carbon and silicon carbide and/or nitride while obtained blank is subjected to siliconising. Directly before siliconising, nano-structured carbon as particles, threads or tubes are formed on the blank material pores. Siliconising is executed by vapour-liquid-phase process with silicon introduction in material pores by capillary condensation of its vapours at temperature higher than that of siliconised blank.;EFFECT: higher serviceability under heating to high temperatures and mechanical straining in oxidising medium.;3 cl, 1 tbl, 10 ex
机译:领域:冶金。实质:所要求保护的过程包括以下步骤。胎体由耐热纤维制成,并在碳和碳化硅和/或氮化物的适当前体的帮助下,通过碳-陶瓷基体材料部分压实,同时将获得的坯料进行硅化处理。即将进行硅化处理之前,在空白材料的孔上形成了纳米结构的碳,如颗粒,细丝或管状。硅化是通过蒸气-液相工艺进行的,在比硅化的毛坯温度更高的温度下,通过蒸汽的蒸汽凝结将硅引入材料孔中;效果:在高温下加热和在氧化介质中机械应变下具有更高的可使用性; 3 cl,1 tbl,10前

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