Structural and magnetic properties of nanocrystalline particles in an amorphous Fe73.5Nb3CuSi13.5B9 matrix

被引：4
|
作者：
Valenzuela, L. A. [1 ]
Duque, J. G. S. [1 ,2 ]
Meneses, C. T. [1 ,2 ]
Nunes, W. C. [1 ]
Knobel, M. [1 ]
机构：
[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil
[2] UFS, Nucleo Fis, BR-49500000 Itabaiana, SE, Brazil
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2008年 / 354卷 / 42-44期
基金：
巴西圣保罗研究基金会;
关键词：
Alloys; Nanocrystals; X-ray diffraction; Magnetic properties;
D O I：
10.1016/j.jnoncrysol.2008.04.039
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We report structural and magnetic properties of fine particles embedded in an amorphous magnetic matrix. As-quenched amorphous Fe73.5Nb3CuSi13.5B9 ribbons (FINEMET) were submitted to the thermal treatments of several times (1 <= t <= 240 min) at 570 degrees C using a conventional furnace. The analyses of the X-ray diffraction patterns at room temperature reveal that our samples consist of single phase Fe3Si nanocrystals embedded in a residual amorphous phase. Magnetic measurements show that the saturation moment at T = 450 degrees C increases as a function of annealing time. This behavior is attributed to an increase of the fraction of nanocrystallites in the residual amorphous phase. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：4871 / 4873
页数：3
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