本文报道了用聚碳硅烷的苯溶液在碳纤维表面涂覆ＳｉＣ工艺对涂层性能、结构的影响以及涂层在ＣＦ／Ａｌ复合材料的制备和性能中的作用行为．ＳｉＣ涂层有效地改善了碳纤维的抗氧化性能，在其厚度小于０．１μｍ时提高了碳纤维的强度，而且它改善了碳纤维与熔Ａｌ的润湿性，阻止了界面上的化学反应，可使复合材料的强度提高８９％．
The technology of SiC-coating by benzene solution of polycarbosiliane onto the surface of carbon fibres and the effect on the properties and structure of the coating,and the behaviours in preparation and performance of Al composites reinforced by this SiC-coated carbon fibres have been investigated.This SiC-coating effectively improved the resistance to oxidation of bare carbon fibres,the strength of it even down to 0.1μm in thickness and the wettabillity between the fibres and molten Al.Thus the interfacial chemical reaction may be prevented,and the strength of the composites increased to 189% of that with bare carbon fibres.Correspondent:WANG Yuqing,(Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110015)
参考文献
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