Optimization of soft magnetic properties in nanoperm type alloys

被引：22
作者：
Kwapulinski, P
Chrobak, A
Haneczok, G
Stoklosa, Z
Rasek, J
Lelatko, J
机构：
[1] Silesian Univ, Inst Phys & Chem Met, PL-40007 Katowice, Poland
[2] Silesian Univ, Inst Phys, PL-40007 Katowice, Poland
来源：
MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2003年 / 23卷 / 1-2期
关键词：
nanocrystallization kinetic; magnetic properties; optimization; nanoperm alloys;
D O I：
10.1016/S0928-4931(02)00234-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present paper, it was shown that soft magnetic properties of the group of amorphous alloys Fe-X-2-B-22 (X=Cr, Zr and Nb) can be optimized (magnetic permeability increases about five times) by applying 1-h annealing at temperatures: 600, 600, 650 and 700 K for the Fe78B22, Fe76Cr2B22, Fe76Zr2B22 and Fe76Nb2B22 alloys, respectively. This effect is attributed to annealing out of free volumes formed into material during fabrication and for the Fe76Zr2B22 alloy also to a formation of a nanocrystalline phase. Using isothermal measurements of magnetization (magnetic balance), it was shown that the process of formation of nanocrysalline phase can be described by Johnson-Mhel-Avrami kinetic. Activation enthalpy of this process was deduced as 3.2 eV and the power law exponent 3.4. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：71 / 75
页数：5
相关论文
共 12 条
[1]   LOCAL SYMMETRIES AND STRUCTURAL DISTORTIONS IN AMORPHOUS FERROMAGNETIC METALS - A STUDY OF THEIR CONTRIBUTIONS TO THE AFTEREFFECT OF THE MAGNETIC-PERMEABILITY [J].
ALLIA, P ;
VINAI, F .
PHYSICAL REVIEW B, 1986, 33 (01) :422-429
[2]   Some applications of mechanical spectroscopy and magnetic relaxation techniques to the examination of diffusion processes in metals and alloys [J].
Haneczok, G ;
Rasek, J .
DEFECTS AND DIFFUSION IN METALS III: ANNUAL RETROSPECTIVE III, 2001, 188-1 :3-20
[3]   Nanocrystalline soft magnetic materials [J].
Herzer, G .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1996, 157 :133-136
[4]  
Herzer G, 2000, J MAGN MAGN MATER, V215, P506
[5]   THEORY OF MAGNETIC AFTEREFFECTS IN FERROMAGNETIC AMORPHOUS-ALLOYS [J].
KRONMULLER, H .
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1983, 48 (02) :127-150
[6]   Optimisation of soft magnetic properties in Fe-Cu-X-Si13B9 (X = Cr, Mo, Zr) amorphous alloys [J].
Kwapulinski, P ;
Rasek, J ;
Stoklosa, Z ;
Haneczok, G .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2001, 234 (02) :218-226
[7]   Nanocrystalline soft magnetic Fe-M-B (M=Zr, Hf, Nb) alloys "NANOPERM" with high magnetic induction [J].
Makino, A ;
Bitoh, T ;
Murakami, JI ;
Hatanai, T ;
Inoue, A ;
Masumoto, T .
JOURNAL DE PHYSIQUE IV, 1998, 8 (P2) :103-106
[8]   Amorphous and nanocrystalline materials for applications as soft magnets [J].
McHenry, ME ;
Willard, MA ;
Laughlin, DE .
PROGRESS IN MATERIALS SCIENCE, 1999, 44 (04) :291-433
[9]   Ageing-induced soft magnetic properties of an amorphous Fe-Si-B-Nb alloy [J].
Naohara, T .
PHILOSOPHICAL MAGAZINE LETTERS, 1998, 78 (03) :229-234
[10]   Interface magnetism in Fe-based nanocrystalline alloys [J].
Slawska-Waniewska, A .
JOURNAL DE PHYSIQUE IV, 1998, 8 (P2) :11-18
12