利用铆钉法制备了Cu—Al扩散偶。借助光学显微镜和彩色金相技术,通过分析烧结过程中销钉及销孔直径尺寸的变化,研究了Cu/Al界面原子扩散的Kirkandall效应。结果表明,在烧结温度范围内铜向铝中的扩散强度大于铝向铜中的扩散强度。
Cu-Al diffusion couples were prepared with mechanical method. The Kirkendall effect of atomic diffusion at Cu/Al interface was investigated by analyzing the changes of the diameters of pin and pinhole respectively during sintering with the help of the OPM and color metallograph. The results show that Cu diffused more into Al in the range of the sintering temperature.