压力淬火过程中锗的相结构研究

PHASE TRANSITIONS OF GERMANIUM DURING PRESSURE QUENCHING

应用高压原位差热方法，直接测量了压力下锗的固化参数─—固化温度与过冷度。高压差热信号表明，当压力大于３ＧＰａ时，锗在凝固过程中可能发生结构相变。Ｘ射线结构分析表明，在最终的样品中除ＧｅⅠ相外，还形成ＧｅⅢ相和ＧｅⅣ相。

The solidification parameters of germanium are directly measured under high pres-sure by a developed high pressure differential thermal analysis method. The differential thermalsignal indicates that some phase transitions of Ge occurred during solidification under pressures ofmore than 3 GPa. High pressure phases of Ge Ⅲ and Ge Ⅳ are found in specimens by X-rayphase identification.