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应用差示扫描热分析(DSC)研究化学沉积的非晶态Ni_(2.7)P合金的等温结晶过程。测得晶化活化能为528 kJ·mol~(-1),Avrami指数n=2.6。根据非晶态固体结晶机理的近似模式n=a+bP,推断该种合金的晶化过程是按恒成核速率(a=1)和三维生长(b=3)扩散控制(p=0.5)的模式进行。
Differential scanning calorimetry (DSC) was used to study the isothermal crystallization process of chemically deposited amorphous Ni 2.7 F alloy. The activation energy of crystallization was 528 kJ · mol -1, Avrami index was n = 2.6. According to the approximate model n = a + bP of the crystallization mechanism of amorphous solid, it is inferred that the crystallization process of this kind of alloy is controlled by the constant nucleation rate (a = 1) and three-dimensional growth (b = The model.