Invar characteristic of Fe-B and Fe82B13Si5 amorphous alloys studied by Mössbauer spectrum analysis

Enhua Yu; Yueying Liu

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Invar characteristic of Fe-B and Fe₈₂B₁₃Si₅ amorphous alloys studied by Mössbauer spectrum analysis

更新时间：2022-08-16

- Invar characteristic of Fe-B and Fe₈₂B₁₃Si₅ amorphous alloys studied by Mössbauer spectrum analysis
- Nuclear Techniques Vol. 07, Issue 4, (1984)
- 作者机构：
  
  东北工学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1984-08
- 稿件说明：
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Enhua Yu, Yueying Liu. Invar characteristic of Fe-B and Fe₈₂B₁₃Si₅ amorphous alloys studied by Mössbauer spectrum analysis[J]. Nuclear techniques, 1984, 07(4): 25.
DOI：

Enhua Yu, Yueying Liu. Invar characteristic of Fe-B and Fe₈₂B₁₃Si₅ amorphous alloys studied by Mössbauer spectrum analysis[J]. Nuclear techniques, 1984, 07(4): 25. DOI：

摘要

应用穆斯堡尔效应及正电子湮没技术，对Fe-B（B

15~21

at%）及Fe

非晶合金进行了分析，其穆斯堡尔谱呈现参数连续变化的六指峰。经计算机解得的内场分布

（

）表明，

（

）在Fe-B系中与B的含量有关；而

（

）在Fe

中则因不同热处理而不同。Fe-B

和经过磁场退火的Fe

都呈现出高而较窄的

（

）分布，Fe-B

系中

（

）的最大内场

移向低场的一侧。对在Fe

中的正电子平均湮没寿命，则经在磁场中热处理后为最大。实验结果表明，Fe-B系的热膨胀系数在B的含量为15%处为极小值；而Fe

（低自旋铁百分数）在B含量为15～16%处有极大值。这就指出Fe

具有大的自发体磁致伸缩

、极小的热膨胀系数、优异的因瓦特性。我们按马歇尔方程计算其饱和磁矩

，它比B＞15%的Fe-B系要小。从分析可知，因瓦特性好的Fe-B和Fe-B-Si非晶都与高的低自旋Fe百分数、高的

（

）分布有关。

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