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Structural Properties and Magnetic Behavior in the Pseudobinary Alloys CoFe-CoAl

Published online by Cambridge University Press:  26 February 2011

Nobutoshi Tadachi ,
Hiroki Ishibashi  and
Mineo Kogachi
Nobutoshi Tadachi
Affiliation:
Department of Materials Science, College of Integrated Arts and Sciences, Osaka Prefecture University, Sakai, 599–8531, Japan
Hiroki Ishibashi
Affiliation:
Department of Materials Science, College of Integrated Arts and Sciences, Osaka Prefecture University, Sakai, 599–8531, Japan
Mineo Kogachi
Affiliation:
Department of Materials Science, College of Integrated Arts and Sciences, Osaka Prefecture University, Sakai, 599–8531, Japan
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Abstract

Structural properties and magnetic behavior in pseudobinary alloys CoFe1−x Alx are studied. The B2-phase exists stably over wide ranges of composition and temperature and the Heusler-phase appears around the stoichiometric composition (0.4< x< 0.6 ) below about 973K. The mean magnetic moment in the B2-phase region decreases nearly linearly with increase in x in x > 0.2. Further, it decreases with increase in quenching temperature in x < 0.4, while it remains almost constant in x > 0.4. The mean magnetic moment of Heusler alloy Co2FeAl (x = 0.5) has the value of 1.30μB/atom, nearly the same as in the B2-phase, and shows no remarkable quenching temperature dependence.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 842: Symposium S – Integrative and Interdisciplinary Aspects of Intermetallics , 2004 , S5.5
Copyright
Copyright © Materials Research Society 2005

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References

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