A method based on magnetic moment measurement to identify the structural transition of quenched Fe 1 - x Ga x ( x = 0.15–0.30) alloys
A method based on magnetic moment measurement to identify the structural transition of quenched Fe 1 - x Ga x ( x = 0.15–0.30) alloys
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DOI：
10.1088/1674-1056/20/7/077501
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发表时间：
2011-07
影响因子：
1.7
通讯作者：
朱小溪;刘敬华;徐翔;蒋成保
中科院分区：
文献类型：
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作者：
朱小溪;刘敬华;徐翔;蒋成保
提出了一种基于Fe原子平均磁矩测量的方法，用于识别淬火Fe 1 −xGax（0.15 ≤ x ≤ 0.30）合金中Ga含量增加引起的结构转变。淬火后的Fe 1 −xGax合金显示出Fe原子平均磁矩从2.25μB到1.78μB再到1.58μB的变化，这对应于从A2到D03再到B2的结构转变。阐明了结构与磁致伸缩的关系，最大磁致伸缩出现在A2相。磁致伸缩的变化趋势得到了很好的表征，这也反映了结构的转变。
A method based on the measurement of Fe average atomic magnetic moment to identify the structural transition caused by the increase of Ga content in quenched Fe1−xGax alloys (0.15 ≤ x ≤ 0.30) is proposed. The quenched Fe1−xGax alloys show a change of the Fe average atomic magnetic moment from 2.25μB to 1.78μB and then to 1.58μB, which corresponds to the structural transition from A2 to D03 and then to B2. The relationship between the structure and the magnetostriction is clarified, and the maximum magnetostriction appears in the A2 phase. The variation tendency of the magnetostriction is well characterized, which also reflects the structural transition.