The kinetics of nanocrystallization and microstructural observations in FINEMET, NANOPERM and HITPERM nanocomposite magnetic materials

被引：154
作者：
McHenry, ME
Johnson, F
Okumura, H
Ohkubo, T
Ramanan, VRV
Laughlin, DE
机构：
[1] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA
[2] ABB Inc, Raleigh, NC 27606 USA
来源：
SCRIPTA MATERIALIA | 2003年 / 48卷 / 07期
关键词：
nanocomposites; soft magnets; HITPERM; NANOPERM; FINEMET;
D O I：
10.1016/S1359-6462(02)00597-3
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This paper presents experimental observations of the nanocrystallization process in materials having Fe-Si (FIN-EMET), alpha-Fe (NANOPERM), and alpha'-FeCo (HITPERM) nanocrystals coupled through an amorphous phase. Crystallization kinetics and chemical partitioning during crystallization are described. Isothermal nanocrystallization is discussed in the framework of the Johnson-Mehl-Avrami-Kolmogorov model and constant heating rate experiments analyzed in the context of the Kissinger model. (C) 2003 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
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收藏
页码：881 / 887
页数：7
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