Ni_3Al的德拜温度及物理性质

DEBYE TEMPERATURE AND PHYSICAL PROPERTIES OF Ni 3Al

用两种Ｘ射线衍射法确定了金属间化合物Ｎｉ３Ａｌ的德拜温度ΘＤ为５５０Ｋ，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。

The Debye temperature( Θ D)of intermetallic compound Ni 3Al 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 Ni 3Al alloy.