Composite magnetic materials based on nanocrystalline powders for high-frequency applications

被引：1
|
作者：
Qin, Hongwei
Hu, Jifan [1 ]
Li, Bo
Jiang, Minhua
机构：
[1] Shandong Univ, Dept Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
[2] Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 310卷 / 02期
基金：
中国国家自然科学基金;
关键词：
composite material; powder core; nanocrystalline; permeability; high frequency;
D O I：
10.1016/j.jmmm.2006.11.023
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The composite cores were prepared by compacting milled powders of as-quenched nanocrystalline ribbons Fe-Cu-Nb-Si-B and Fe-Zr-B-Cu with epoxy resin. The real permeability at 1 MHz of Fe72Cu2.5Nb3Si13.5B9 powder core with 5 wt% epoxy resin is 30.9 when compacting under 24 MPa, and is 33.0 when compacting under 49 MPa. The powder cores prepared from as-quenched nanocrystalline ribbons show a. at permeability in a wide frequency range. The transition of permeability spectra from resonance to relaxation can be induced by enhancing the compacting pressure. (C) 2006 Elsevier B. V. All rights reserved.
引用
收藏
页码：E864 / E866
页数：3
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