Magnetostriction Increase of Tb0.3Dy0.7Fe1.95 Alloy Prepared by Solidification in High Magnetic Fields  

作　　者：王凯 刘铁 高鹏飞 王强 刘印 赫冀成 

机构地区：[1]Key Laboratory of Electromagnetic Processing of Materials of Ministry of Education,Northeastern University

出　　处：《Chinese Physics Letters》2015年第3期137-140,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 51425401 and 51271056;the Fundamental Research Funds for the Central Universities under Grant Nos N140901001 and N140902001;the Doctoral Scientific Research Foundation of Liaoning Province under Grant No 20131034

摘　　要：Tb0.3Dy0.TFe1.95 alloys are solidified under various high magnetic field conditions. The influence of a high magnetic field on the crystal orientation, morphology and magnetostriction of the alloys are studied. The results show that with the increase of magnetic flux density, the crystal orientation of the （Tb,Dy）Fe2 phase changed from （113） to （111） direction; the grains in the alloys tended to align along the magnetic field direction; and the magnetostriction of Tb0.3Dy0.7Fe1.95 alloys is remarkably improved. The change in magnetostriction of Tb0.3Dy0.TFe1.95 alloys is linked to the amount and the crystal orientation behavior of the （Tb,Dy）Fe2 phase.Tb0.3Dy0.TFe1.95 alloys are solidified under various high magnetic field conditions. The influence of a high magnetic field on the crystal orientation, morphology and magnetostriction of the alloys are studied. The results show that with the increase of magnetic flux density, the crystal orientation of the （Tb,Dy）Fe2 phase changed from （113） to （111） direction; the grains in the alloys tended to align along the magnetic field direction; and the magnetostriction of Tb0.3Dy0.7Fe1.95 alloys is remarkably improved. The change in magnetostriction of Tb0.3Dy0.TFe1.95 alloys is linked to the amount and the crystal orientation behavior of the （Tb,Dy）Fe2 phase.

关 键 词：DY Alloy Prepared by Solidification in High Magnetic Fields Magnetostriction Increase of Tb Fe 

分 类 号：O469[理学—凝聚态物理]