本文应用穆斯堡尔谱学方法研究了Fe

80

B

20

和Fe

82

B

18-

x

Si

x

（x

=2，4，6，8，10）非晶态合金的超精细场分布，得出在各种不同B、Si浓度下平均超精细场的变化曲线。研究结果表明：在

x

=2至10范围内，Fe

82

B

18-

x

Si

x

的平均超精细场随着Si含量的增大而略有增大。这是因为Si原子数目增加时，体积较大的Si原子取代了，Fe

82

B

18-

x

Si

x

非晶合金中处于间隙位置的B原子，从而使形变和平均超精细场都有所增加。

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