Influence of hot compaction on microstructure and magnetic properties of mechanically alloyed Fe(Co)-based amorphous compositions

被引：5
作者：
Ipus, J. J. [1 ]
Borrego, J. M. [1 ]
Blazquez, J. S. [1 ]
Stoica, M. [2 ,3 ]
Franco, V. [1 ]
Conde, A. [1 ]
机构：
[1] Univ Seville, CSIC, Dept Fis Mat Condensada, ICMSE, E-41080 Seville, Spain
[2] IFW Dresden, Inst Complex Mat, D-01069 Dresde, Germany
[3] Politehn Univ Timisoara, Timisoara 300006, Romania
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 653卷
关键词：
Amorphous and nanocrystalline alloys; Mechanical alloying; Hot compaction; Magnetocaloric effect; FABRICATION;
D O I：
10.1016/j.jallcom.2015.09.074
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：
Amorphous Fe75Nb10B15 and (Fe70Co30)(75)Nb10B15 alloys were prepared by mechanical alloying from the elemental constituents and hot compacted at different temperatures within the supercooled liquid region. After compaction, the microstructure studied by X-ray diffraction shows an increase in the crystalline fraction for both compositions. Magnetic properties and magnetic entropy change of compacted samples of the Co-free alloy were enhanced with respect to the powder sample, meanwhile, a deterioration in these properties was observed for the Co containing alloy after compaction. Both changes could be ascribed to an enrichment in boron in the amorphous phase. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：546 / 551
页数：6
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