CHEN Xinguo ZHENG Guobin SHEN Zuhong DU Haifeng Institute of Metal Research
,
Academia Sinica
,
Shenyang
,
China
金属学报(英文版)
The effect of different regimes of heat treatment on the tensile strength of SiC coated composite of C fibers reinforced Al wires has been investigated.Their tensile strength may increase under treatment either at 500℃ for 2h or 550℃ for 1h,but decrease over 600℃.After the strength tests of extracted fibers from composite wires,the SiC coating is an excellent protection to C fibers.EPMA and EDAX showed that the C/Al interface of the composite wires is stable under treatment below 600℃,but unstable at 650℃
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