| Fe81Ga19合金晶体生长取向与磁致伸缩性能 |
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| 引用本文： | 李川,刘敬华,陈立彪,蒋成保,徐惠彬.Fe81Ga19合金晶体生长取向与磁致伸缩性能[J].物理学报,2011,60(9):97505-097505. |
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| 作者姓名： | 李川 刘敬华 陈立彪 蒋成保 徐惠彬 |
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| 作者单位： | 空天先进材料与服役教育部重点实验室,北京航空航天大学材料科学与工程学院,北京 100191 |
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| 基金项目： | 国家自然科学基金(批准号:50971008, 50925101, 50921003)和中央高校基本科研业务费专项资金资助的课题. |
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| 摘 要： | 通过区熔定向凝固法,生长出001]易磁化方向与晶体轴向之间存在不同取向差的Fe81Ga19合金单晶体和Fe81Ga19合金多晶体.极图测试结果显示,Fe81Ga19合金单晶体的001]方向与轴向取向差分别为12°,5°和3°.采用电阻应变片法测定相应磁致伸缩应变,与外加磁场方向平行的轴向磁致伸缩应变分别为254×10-6,271×10-6<
关键词：
磁致伸缩
81Ga19合金')" href="#">Fe81Ga19合金
晶体取向
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| 关 键 词： | 磁致伸缩 Fe81Ga19合金 晶体取向 |
| 收稿时间： | 2010-10-27 |
Crytallographic orientation and magmetostriction of FeGa crystals |
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| Li Chuan,Liu Jing-Hu,Chen Li-Biao,Jiang Cheng-Bao and Xu Hui-Bin.Crytallographic orientation and magmetostriction of FeGa crystals[J].Acta Physica Sinica,2011,60(9):97505-097505. |
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| Authors: | Li Chuan Liu Jing-Hu Chen Li-Biao Jiang Cheng-Bao and Xu Hui-Bin |
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| Institution: | Key Laboratory of Aerospace Materials and Performance (Ministry of Education) School of Materials Science and Engineering, Beihang University, Beijing 100191, China;Key Laboratory of Aerospace Materials and Performance (Ministry of Education) School of Materials Science and Engineering, Beihang University, Beijing 100191, China;Key Laboratory of Aerospace Materials and Performance (Ministry of Education) School of Materials Science and Engineering, Beihang University, Beijing 100191, China;Key Laboratory of Aerospace Materials and Performance (Ministry of Education) School of Materials Science and Engineering, Beihang University, Beijing 100191, China;Key Laboratory of Aerospace Materials and Performance (Ministry of Education) School of Materials Science and Engineering, Beihang University, Beijing 100191, China |
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| Abstract: | Fe81Ga19 single crystals and polycrystals with different orientations are prepared by zone melting directional solidification. Pole figures show that the deviation degrees between 001] orientation and axis are 12°, 5° and 3°, and the in corresponding axial magnetostrictions parallel to external magnetic field are 254×10-6, 271×10-6 and 291×10-6. The001]orientation single crystal is determined by back-reflection Laue, and the magnetostriction is 312×10-6. The results reveal the relationship between crystallographic orientation and magnetostriction, and the increase of magnetostrictions with deviation degree decreasing. The deviation degrees between 001]orientation and axis of polycrystals are determined by Electron Backscattered Diffraction to be 18.4°, 15.2° and 14.8°, and thir corresponding magnetostrictions are 180×10-6m, 230×10-6 and 235×10-6. |
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| Keywords: | magnetostriction Fe81Ga19 alloy crystallographic orientation |
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