Magnetic properties of HITPERM (Fe, Co)88Zr7B4Cu1 magnets
Magnetic properties of HITPERM (Fe, Co)88Zr7B4Cu1 magnets
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DOI：
10.1063/1.369804
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发表时间：
1999-04
影响因子：
3.2
通讯作者：
M. Willard;M. Huang;D. Laughlin;M. McHenry;J. Cross;V. Harris;C. Franchetti
中科院分区：
文献类型：
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作者：
M. Willard;M. Huang;D. Laughlin;M. McHenry;J. Cross;V. Harris;C. Franchetti
本文报道了一类新的纳米晶合金，其成分为Fe_（44）Co_（44）Zr_（7 B）Cu_（1）。该合金和一般成分为（Fe，Co）-M-B-Cu（其中M=Zr，Hf，Nb等）的类似合金被称为HITPERM。它们在高温下提供大的磁感应和优异的软磁性能。热磁性能，磁导率和频率相关的损失在本报告中进行了描述。这些合金表现出高的磁化强度，在980 °C下持续到α→γ相变。交流磁导率实验揭示了在2kHz下的高磁导率，在Bs=10 kG和f=10 kHz下的损耗值为1 W/g。
A new class of nanocrystalline alloys with composition Fe44Co44Zr7B4Cu1 has been developed. This and similar alloys of general composition (Fe, Co)–M–B–Cu (where M=Zr, Hf, Nb, etc.) have been named HITPERM. They offer large magnetic inductions and excellent soft magnetic properties at elevated temperatures. Thermomagnetic properties, permeability, and frequency dependent losses are described in this report. These alloys exhibit high magnetization that persists to the α→γ phase transformation at 980 °C. Alternating current permeability experiments reveal a high permeability at 2 kHz with a loss value of 1 W/g at Bs=10 kG and f=10 kHz.