Phase relationships in the CeFe8Co3Ti1-ySiy system

JOURNAL OF ALLOYS AND COMPOUNDS

卷:712

Article

Conner, B. S.¹  McGuire, M. A.¹  Susner, M. A.^1,2  Sales, B. C.¹ 

[1] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA

[2] UES Inc, Beavercreek, OH 45432 USA

关键词: Permanent magnet;    Magnetic anisotropy;    Critical materials;    ThMn12;    CeFe11Ti;    CeFen(11)Si;    TbCu7;    Th2Mn7;    CaCu5;   

DOI  :  10.1016/j.jallcom.2017.04.048

来源: Elsevier

【 摘 要 】

The phase formation behavior of the nominal CeFe8Co3Ti1-ySiy system is investigated for 0 <= y <= 0.6 by powder x-ray diffraction and scanning electron microscopy with energy dispersive x-ray spectroscopy for ingots formed by arc-melting then annealing at 1000 degrees C and quenching to room temperature. The ingots are seen to nearly single phase for y <= 0.4 and are multi-phase for y >= 0.5 though a compound of the ThMn12 type does indeed form for all values of y. The saturation magnetizations (M-s), Curie temperatures (T-c), and magnetic anisotropy fields (H-a) are measured for the y <= 0.4 samples and the values of M-s and H-a appear to be nearly identical for all y <= 0.4. T-c, however, is seen to increase about 20 degrees C in this range for increasing y. (C) 2017 Elsevier B.V. All rights reserved.

【 授权许可】

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