湿热环境对石墨/铝复合材料的影响

 一、前言 由于铝与石墨的电极电位的不同以及界面存在易水解反应的产物Al₄C₃介质环境将对石墨/铝复合材料的性能,结构等发生影响。在海水介质、NaCl（3.5％）溶液、蒸馏水及海洋环境中已进行了不少工作。本文旨在研究石墨/铝复合材料在湿热环境

THE EFFECTS OF HYGROTHERMAL ENVIRONMENT ON THE ALUMINIUM/GRAPHITE FIBER COMPOSITES

A number of studies on the behaviours of aluminium/graphite composite wires after exposure to the hygrothermal environment have been carried out. It is indicated that the water （mpisture） penetrating into the composites would cause the weight gain, hydrolysis of aluminium carbide and dissolve of aluminium matrix, which would lead to the weakening of interface bond and variation of tensile strength. It is harmful to behaviours of composite wires in hygrothermal environment when a large amount of aluminium carbide exsits. Therefore, it is suggested that the considerations of preventing a large amount of aluminium carbide formation or some protective coatings are very necessary.