用透射电子显微镜对不同热处理后Au-11。4wt％ Ge-4.8wt％ Ni蒸发薄膜进行了结构分析和形态观察。常温下此膜的结构是过饱和的金固溶体。经300℃以上较长时间(10分钟以上)加热后,膜的结构转变为金固溶体和NiGe化合物。在高压电子显微镜加热台上进行的动态观察显示:升温到约500℃时尺寸近2000埃的圆盘伏NiGe晶粒在两秒内被金固溶体吞并。余下的NiGe晶粒对500℃以上发生的金固溶体薄膜的缩聚过程有阻碍作用。 The structure and morphology of Au-11.4wt% Ge-4.8wt% Ni evaporated films were observed by transmission electron microscopy. The membrane structure at room temperature is supersaturated gold solid solution. After a long time (more than 10 minutes) above 300 ℃, the structure of the film is transformed into gold solid solution and NiGe compound. Dynamic observation on a high-pressure electron microscope heating stage showed that disk-shaped NiGe grains with a size of nearly 2000 Angstrom when heated to about 500 ° C were swallowed by the gold solid solution within two seconds. The remaining NiGe grains impede the polycondensation process of the gold solid solution film above 500 ° C.