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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<
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关键词:
- 磁致伸缩 /
- Fe81Ga19合金 /
- 晶体取向
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.-
Keywords:
- magnetostriction /
- Fe81Ga19 alloy /
- crystallographic orientation
[1] Guruswamy S, Srisukhumbowornchai N, Clark A E, Restorff J B, Wun-Fogle M 2000 Scr. Mater. 43 239
[2] Clark A E, Wun-Fogle M, Restorff J B, Lograsso T A, Cullen J R 2001 IEEE Trans. Magn. 37 2678
[3] Clark A E, Restorff J B, Wun-Fogle M, Lograsso T A, Schlagel D L 2000 IEEE Trans. Magn. 36 3283
[4] Clark A E, Hathaway K B, Wun-Foglea M, Restorff J B, Lograsso T A, Keppens V M, Petculescu G, Taylor R A 2003 J. Appl. Phys. 93 8621
[5] Datta S, Atulasimha J, Mudivarthi C, Flatau A B 2010 J. Magn. Magn. Mater. 322 2135
[6] Kellogg R A, Russell A M, Lograsso T A, Flatau A B, Clark A E, Wun-Fogle M 2004 Acta Mater. 52 5043
[7] Zhou J K, Li J G 2008 Appl. Phys. Lett. 92 141915
[8] Hatchard T D, George A E, Farrell S P, Steinitz M O, Adamsd C P, Cormierd M, Dunlap R A 2010 J. Alloys. Compd. 494 420
[9] Li J H, Gao X X, Zhu J, Bao X Q, Xia T, Zhang M C 2010 Scr. Mater. 63 246
[10] Mahadevan A, Evans P G, Dapino M J 2010 J. Appl. Phys. 96 012502
[11] Clark A E, Wun-Fogle, M, Restorff J B, Lograsso T A, Ross A R, Schlagel D L 2000 Proceedings of the 7th International Conference on New Actuators, Ed. H. Borgmann, Messe Bremen GmbH, Bremen, Germany, 111
[12] Kellogg R A, Flatau A B, Clark A E, Wun-Fogle M, Lograsso T A 2002 J. Appl. Phys. 91 7821
[13] Summers E, Lograsso T A, Snodgrass J D 2004 Smart Mater. Struct. 5387 448
[14] Srisukhumbowornchai N, Guruswamy S 2001 J. Appl. Phys. 90 5680
[15] Kumagai A, Fujita A, Fukamichi K, Oikawa K, Kainuma R, Ishida K 2004 J. Magn. Magn. Mater. 272-276 2060
[16] Zhong W D 2000 Ferromagnetism (Beijing: Science Press) p21—37 (in Chinese) [钟文定 2000 铁磁学 (北京: 科学出版社) 第21—37页]
[17] Summers E M, Lograsso T A, Wun-Fogle M 2007 J. Mater. Sci. 42 9582
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[1] Guruswamy S, Srisukhumbowornchai N, Clark A E, Restorff J B, Wun-Fogle M 2000 Scr. Mater. 43 239
[2] Clark A E, Wun-Fogle M, Restorff J B, Lograsso T A, Cullen J R 2001 IEEE Trans. Magn. 37 2678
[3] Clark A E, Restorff J B, Wun-Fogle M, Lograsso T A, Schlagel D L 2000 IEEE Trans. Magn. 36 3283
[4] Clark A E, Hathaway K B, Wun-Foglea M, Restorff J B, Lograsso T A, Keppens V M, Petculescu G, Taylor R A 2003 J. Appl. Phys. 93 8621
[5] Datta S, Atulasimha J, Mudivarthi C, Flatau A B 2010 J. Magn. Magn. Mater. 322 2135
[6] Kellogg R A, Russell A M, Lograsso T A, Flatau A B, Clark A E, Wun-Fogle M 2004 Acta Mater. 52 5043
[7] Zhou J K, Li J G 2008 Appl. Phys. Lett. 92 141915
[8] Hatchard T D, George A E, Farrell S P, Steinitz M O, Adamsd C P, Cormierd M, Dunlap R A 2010 J. Alloys. Compd. 494 420
[9] Li J H, Gao X X, Zhu J, Bao X Q, Xia T, Zhang M C 2010 Scr. Mater. 63 246
[10] Mahadevan A, Evans P G, Dapino M J 2010 J. Appl. Phys. 96 012502
[11] Clark A E, Wun-Fogle, M, Restorff J B, Lograsso T A, Ross A R, Schlagel D L 2000 Proceedings of the 7th International Conference on New Actuators, Ed. H. Borgmann, Messe Bremen GmbH, Bremen, Germany, 111
[12] Kellogg R A, Flatau A B, Clark A E, Wun-Fogle M, Lograsso T A 2002 J. Appl. Phys. 91 7821
[13] Summers E, Lograsso T A, Snodgrass J D 2004 Smart Mater. Struct. 5387 448
[14] Srisukhumbowornchai N, Guruswamy S 2001 J. Appl. Phys. 90 5680
[15] Kumagai A, Fujita A, Fukamichi K, Oikawa K, Kainuma R, Ishida K 2004 J. Magn. Magn. Mater. 272-276 2060
[16] Zhong W D 2000 Ferromagnetism (Beijing: Science Press) p21—37 (in Chinese) [钟文定 2000 铁磁学 (北京: 科学出版社) 第21—37页]
[17] Summers E M, Lograsso T A, Wun-Fogle M 2007 J. Mater. Sci. 42 9582
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