利用非等温等蒸气压法研究了Ni-Sb二元合金的相关系,确定了Ni5Sb2和γ-NiSb的相边界.当温度高于715℃时Ni-Sb体系中不存在Ni3Sb相,只有Ni5Sb2相存在,Ni5Sb2的相边界是(原子分数)29.42%～31.6%Sb,γ-NiSb的相边界为(原子分数)50.2%～52.58%Sb.测定了非化学计量金属间化合物Ni5Sb2和γ-NiSb非化学计量范围内Sb的活度,并计算了Sb的偏摩尔焓和偏摩尔熵等热力学性质.
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