K_2ZrF_6助浸SiC涂层碳纤维增强Al复合材料的研究

金属学报

1993, Vol. 29

Issue (8): 91-96

论文

本期目录 | 过刊浏览

K_2ZrF_6助浸SiC涂层碳纤维增强Al复合材料的研究

陈新国;沈祖洪;郑国斌

工程师;杭州(310013);浙江省冶金研究所;中国科学院金属研究所;中国科学院金属研究所

IMPROVEMENT ON SiC COATED CF/Al COMPOSITES BY K_2ZrF_6 WETTING PROMOTION

CHEN Xinguo;SHEN Zuhong;ZHENG Guobin Institute of Metal Research; Academia Sinica; ShenyangZhejiang Institute of Metallurgy; Hangzhou 310013

引用本文:

陈新国;沈祖洪;郑国斌. K_2ZrF_6助浸SiC涂层碳纤维增强Al复合材料的研究[J]. 金属学报, 1993, 29(8): 91-96.
, , . IMPROVEMENT ON SiC COATED CF/Al COMPOSITES BY K_2ZrF_6 WETTING PROMOTION[J]. Acta Metall Sin, 1993, 29(8): 91-96.

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摘要: 研究了用K_2ZrF_6助浸法制造C/Al复合材料的工艺和K_2ZrF_6的助浸机理结果表明:K_2ZrF_6处理后,C,Al间的润湿性仍比SiC,Al间的差C,Al间的润湿主要靠大量的界面化学反应、这使得复合材料的制造十分困难;而SiC、Al间的润湿靠微量的SiC在Al中的溶解K在纤维或涂层中的扩散也可能起助浸作用Al液在极短时间内对SiC涂层后的纤维束或纤维预制件浸渍良好同时,将基体Si合金化后,获得了完整的CF/SiC/Al界面,圆满解决了C/Al复合材料的界面相容性和制造中的问题

关键词 ： SiC涂层, 碳纤维, K_2Z_rF_6复合材料

Abstract：The CF/Al composite seems hard to be forming, the wettability between car-bon fibres and Al, which is mainly because of their interfacial chemical reaction, is still poorthough it was treated by K_2ZrF_6 wetting promotion. While, the wettability between SiC andAl is dependent on dissolving a small amount of SiC, coating on carbon fibre, in Al melt. Thediffusion of K, in K_2ZrF_6, through the carbon fibre surface or SiC coating may perhaps bepromoted. Molten Al may fully infiltrate the SiC coated fibre tows or fibre preforms in a veryshortterm. Thus, the fair CF/SiC/Al interfaces may be obtained by alloying the matrixwith Si, and the compattibility between C/Al interfaces and other forming problem may be

Key words： SiC coating carbon fibre K_2ZrF_6 composite

收稿日期: 1993-08-18

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