利用铜模铸造法制备(La0.6Ce0.4)65Al10Cu25块体非晶合金,通过X射线衍射和差示扫描量热法对该非晶合金的热稳定性和晶化行为进行研究.利用J-M-A方程对其等温晶化动力学进行分析,该合金平均Avrami指数在2.39～3.38之间.区域Avrami指数n(x)分析表明,晶化初期n(x)趋于3；晶化中期阶段,n(x)由2.5变化到3.5,在此过程中,当2.5＜n＜3时,新相长大,形核率增加,当3＜n＜3.5时,新相继续长大,形核率降低；晶化末期,n(x)趋于4,表明晶化过程是形核速率恒定和长大速率恒定的过程.
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