(Tb0.36Dy0.64)1-xHoxFe1.95 magnetostrictive alloys with 【110】 orientation were prepared by zone melting directionally solidified method.The magnetostrictive performance and hysteresis of 【110】 aligned polycrystall...(Tb0.36Dy0.64)1-xHoxFe1.95 magnetostrictive alloys with 【110】 orientation were prepared by zone melting directionally solidified method.The magnetostrictive performance and hysteresis of 【110】 aligned polycrystalline(Tb0.36Dy0 64)1-xHoxFe1.95 were investigated under applied magnetic field H(0【H【4 kOe) in the temperature range from-60 to 80 oC with 0,5 and 10 MPa pre-stress.The(Tb0.36Dy0.64)1-x HoxFe1.95 alloys(x【0.3) have the character of giant magnetostriction from-60 to 80 oC.An obvious magnetostrictive "jump" effect was observed in these samples from-60 to 80 oC.The pre-stress and temperature dependence of the Wh was also examined.Between the temperature range from-60 to 80 oC,the magnetostriction increased with temperature decreased,while the magnetostriction hysteresis decreased,with the pre-stress increased,but the magnetostriction and the magnetostrictive hysteresis increased.展开更多
基金Project supported by the Natural Science Foundation of Hebei Province (E2010000298)Doctor Found of Hebei University (Y2009-147)
文摘(Tb0.36Dy0.64)1-xHoxFe1.95 magnetostrictive alloys with 【110】 orientation were prepared by zone melting directionally solidified method.The magnetostrictive performance and hysteresis of 【110】 aligned polycrystalline(Tb0.36Dy0 64)1-xHoxFe1.95 were investigated under applied magnetic field H(0【H【4 kOe) in the temperature range from-60 to 80 oC with 0,5 and 10 MPa pre-stress.The(Tb0.36Dy0.64)1-x HoxFe1.95 alloys(x【0.3) have the character of giant magnetostriction from-60 to 80 oC.An obvious magnetostrictive "jump" effect was observed in these samples from-60 to 80 oC.The pre-stress and temperature dependence of the Wh was also examined.Between the temperature range from-60 to 80 oC,the magnetostriction increased with temperature decreased,while the magnetostriction hysteresis decreased,with the pre-stress increased,but the magnetostriction and the magnetostrictive hysteresis increased.
