Crystallization Behavior and Curie Temperature for Melt-Spun Amorphous Fe 100-X Gd X (18≤X≤70) Alloys

The crystallization behavior and Curie temperature, T c , for the amorphous Fe 100- X Gd X alloys prepared with a melt quenching method with wide range concentration (18≤ X ≤70) were studied by means of a thermomagnetization measurement. Final stable phases were determined from the measurement in th...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 1991-03, Vol.30 (3B), p.L482
Main Authors: Yano, Kazuo, Tokumitsu, Kazuto, Kita, Eiji, Ino, Hiromitsu, Akira Tasaki, Akira Tasaki
Format: Article
Language:English
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Summary:The crystallization behavior and Curie temperature, T c , for the amorphous Fe 100- X Gd X alloys prepared with a melt quenching method with wide range concentration (18≤ X ≤70) were studied by means of a thermomagnetization measurement. Final stable phases were determined from the measurement in the cooling process from 800°C. They are (i) α-Fe, Fe 23 Gd 6 and Fe 2 Gd for X =22, (ii) α-Fe, Fe 2 Gd and α-Gd for 33.3≤ X ≤58, and (iii) Fe 2 Gd and α-Gd for X =70. The concentration dependence of T c has a maximum value of 320°C around X =40. T c in the present melt-spun ribbons is higher than that of thin films by about 100 degrees.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.30.L482