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Crytallographic orientation and magmetostriction of FeGa crystals

Li Chuan Liu Jing-Hua Chen Li-Biao Jiang Cheng-Bao Xu Hui-Bin

Crytallographic orientation and magmetostriction of FeGa crystals

Li Chuan, Liu Jing-Hua, Chen Li-Biao, Jiang Cheng-Bao, Xu Hui-Bin
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  • Abstract views:  3659
  • PDF Downloads:  630
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Publishing process
  • Received Date:  27 October 2010
  • Accepted Date:  16 December 2010
  • Published Online:  15 September 2011

Crytallographic orientation and magmetostriction of FeGa crystals

  • 1. Key Laboratory of Aerospace Materials and Performance (Ministry of Education) School of Materials Science and Engineering, Beihang University, Beijing 100191, China

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. The[001]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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