对电弧炉熔炼的Nd2(Mn1-x, Alx)17(x=1～10)化合物进行了X射线衍射研究. 结果表明, Nd2(Mn1-x, Alx)17(x=1～10)化合物具有Th2Zn17型结构, 随着Al替代量的增加, Nd2(Mn1-x, Alx)17(x=1～10)化合物的晶格常数a, c及单胞体积V都增加. 对样品的时效研究表明, Nd2(Mn1-x, Alx)17(x=1～10)化合物在自然环境中十分稳定, 这表明Al比C更能使富锰的2∶17相(Th2Zn17)稳定.
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