Ni₃Al的德拜温度及物理性质^①

来源期刊：中国有色金属学报1996年第4期

论文作者：张迎九 谢佑卿 李为民 唐仁正 高坤元 吕维洁

文章页码：117 - 121

关键词：Ni₃Al； X射线衍射； 德拜温度； 物理性质

Key words：Ni₃Al;　X-Ray diffraction;　Debye temperature;　physical properties

摘    要：用两种X射线衍射法确定了金属间化合物Ni₃Al的德拜温度Θ_D为550 K并利用新发展的“固体中多原子相互作用的新势能函数”和测定的Ni₃Al合金的德拜温度，计算了Ni₃Al合金的结合能、形成热、体弹性模量以及比热和线热膨胀系数随温度变化的曲线。

Abstract: The Debye temperature(Θ_D)of intermetallic compound Ni₃Al has been determined as 550 K by two X-Ray diffraction ways. The cohesive energy, formation heat, bulk modulus of elasticity and the curve of specific heat and linear coefficient of thermal expansion as a function of temperature have been calculated, using the new ly developed potential function of interactions of many atoms in solids and by measuring Debye temperature of Ni₃Al alloy.