非晶Fe94Si6薄带压磁效应的研究  

Piezomagnetic properties of the Fe94Si6 alloy strips

作　　者：马广斌[1] 朱正吼[1] 夏小鸽[1] 李塘华[1] 

机构地区：[1]南昌大学材料科学与工程学院,江西南昌330031

出　　处：《功能材料》2007年第1期14-15,19,共3页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(10576014)

摘　　要：利用单辊法制备宽5mm厚25μm的非晶FeSi带材，利用XRD、SEM和EDS等手段对其进行了表征，并利用4294A阻抗分析仪，在0～100MHz频率范围内研究了样品的点压磁阻抗效应。结果表明，非晶带的阻抗随着频率的增加而增加，并随压力的增加变化更加敏感，尤其是频率在1～100MHz范围内时。非晶FeSi带材具有优越的压磁效应，在频率为100MHz，阻抗变化可达34．9433Ω。In this paper, FeSi-based aznorphous alloy＇s strips with 25μm thickness and 5mm width is manufactured by single-roller method. The strips were characterized by XRD,EDS and SEM, point-piezomagnetic impedance spectra of these films were investigated in the range of 0-100MHz. The result show that the impedance of amorphous strips increase with frequency, and sensitively decrease with stress increase, especially in the frequency range from 1 - 100MHz. The strips, have excellent piezomagnetic properties, especially frequency is 100MHz,AZ reaches to 34. 9433Ω.

关 键 词：压磁效应 非晶带 阻抗 

分 类 号：TG111.92[金属学及工艺—物理冶金] O484.4[金属学及工艺—金属学]