電析法による炭素繊維-銅複合材の引張強度

抄録

Carbon fiber-reinforced copper composites were prepared by two methods, one was by an electrodeposition and the other was by a hot-pressing after the electrodeposition. The tensile strength of the composites along the fiber direction was measured. For the composites obtained by electrodeposition, the reinforcement of the matrix due to the internal stress induced by the electrodeposition was superimposed on the reinforcement by the fibers. While the strength of the composites prepared by the latter method depended remarkably on the hot-pressing condition. The structural observation showed that the matrix of the composites having lower strength was porous. Since the surface of the electrodeposited copper was relatively rough, it could be assumed that pores which were liable to spread perpendicularly to the fiber direction were formed and this shape of pore would be responsible for lowering of the tensile strength of the composites.