Open AccessCrytallographic orientation and magmetostriction of FeGa crystals
Author(s) -
Chuan Li,
Jinghua Liu,
Chen Li-Biao,
Jiang Chengbao,
Huibin Xu
Publication year - 2011
Publication title -
acta physica sinica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.097505
Subject(s) - magnetostriction , materials science , orientation (vector space) , directional solidification , optical axis , diffraction , reflection (computer programming) , optics , uniaxial crystal , condensed matter physics , magnetic field , single crystal , zone axis , electron diffraction , crystallography , physics , geometry , microstructure , composite material , chemistry , mathematics , programming language , quantum mechanics , computer science , lens (geology)
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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