Microstructural and magnetic characterization of Nd2Fe17 ball milled alloys

被引：15

作者：

Alvarez, P. ^{[1
]}

Sanchez Llamazares, J. L. ^{[1
]}

Perez, M. J. ^{[1
]}

Hernando, B. ^{[1
]}

Santos, J. D. ^{[1
]}

Sanchez-Marcos, J. ^{[2
,3
]}

Blanco, J. A. ^{[1
]}

Gorria, P. ^{[1
]}

机构：

[1] Univ Oviedo, Dept Fis, E-33007 Oviedo, Spain

[2] CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid, Spain

[3] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2008年 / 354卷 / 47-51期

关键词：

Mechanical alloying; Nanocrystals; Neutron diffraction/scattering; X-ray diffraction; Magnetic properties; Powders;

D O I：

10.1016/j.jnoncrysol.2008.08.020

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：

Microstructural and magnetic changes induced by ball milling in Nd2Fe17 alloy have been investigated. X-ray and neutron powder diffraction studies have shown that the main crystalline phase present in the as-cast Nd2Fe17 compound is the rhombohedral Th2Zn17-type crystal structure. Contrary to other materials, the crystal structure does not change after milling, and the crystal lattice parameters slightly increases while the induced strain is less than 0.1%. It has been observed from SEM and TEM images that the microstructure consists of agglomerates of nanoparticles with a mean size around 20 nm, and from magnetic measurements a broadening of the temperature range in which ferromagnetic to paramagnetic transition takes place. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：5172 / 5174

页数：3

共 15 条

[1] MAGNETIC PHASE-TRANSITIONS OF R2FE17 COMPOUNDS UNDER PRESSURE [J].