Supersaturated solid solution obtained by mechanical alloying of 75% Fe, 20% Ge and 5% Nb mixture at different milling intensities

被引:16
作者
Blazquez, J. S. [1 ]
Ipus, J. J. [1 ]
Millan, M. [1 ]
Franco, V. [1 ]
Conde, A. [1 ]
Oleszak, D. [2 ]
Kulik, T. [2 ]
机构
[1] Univ Seville, ICMSE CSIC, Dept Fis Mat Condensada, E-41080 Seville, Spain
[2] Warsaw Univ Technol, Fac Mat Sci & Engn, PL-02507 Warsaw, Poland
关键词
Nanostructures; Mechanical alloying and milling; MAGNETIC-PROPERTIES; THERMAL-STABILITY; NANOCRYSTALLINE; MICROSTRUCTURE; AL; CO;
D O I
10.1016/j.jallcom.2008.01.144
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Mechanical alloying process of Fe75Ge20Nb5 composition has been Studied at different milling frequencies from initial pure powder mixture to the development of a single bee phase (supersaturated solid solution). As an intermediate state, ail intermetallic phase is formed, which disappears after further milling or after thermal treatment (ascribed to an endothermic process at 700-800 K). A preferential partition of Nb and Ge to the boundaries between nanocrystals of bee Fe-Ge-Nb supersaturated solid solution is observed from X-ray diffraction (XRD) and Mossbauer results. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:169 / 178
页数:10
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