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Nanocrystallization of amorphous (Fe1-xCox)88Zr7B4Cu1 alloys and their soft magnetic properties

Published online by Cambridge University Press:  27 July 2011

Diraviam Arvindha Babu ,
Bhaskar Majumdar ,
Rajdeep Sarkar ,
Muthuvel Manivel Raja  and
Dilshad Akhtar
Diraviam Arvindha Babu
Affiliation:
Defence Metallurgical Research Laboratory, Hyderabad-500058, India
Bhaskar Majumdar*
Affiliation:
Defence Metallurgical Research Laboratory, Hyderabad-500058, India
Rajdeep Sarkar
Affiliation:
Defence Metallurgical Research Laboratory, Hyderabad-500058, India
Muthuvel Manivel Raja
Affiliation:
Defence Metallurgical Research Laboratory, Hyderabad-500058, India
Dilshad Akhtar
Affiliation:
Defence Metallurgical Research Laboratory, Hyderabad-500058, India
*
a)Address all correspondence to this author. e-mail: bhaskarmajumdar1@rediffmail.com
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Abstract

Amorphous ribbons of (Fe1-xCox)88Zr7B4Cu1 (x = 0.2, 0.35, 0.5, and 0.6) alloys were annealed to produce a nanocrystalline phase dispersed in the amorphous matrix. Precision lattice parameter calculation showed that composition of the nanocrystalline phase is Fe73Co27 for all the alloys irrespective of initial alloy composition. This result was well corroborated with the Mössbauer results. Saturation magnetization of annealed ribbons was almost same for all the alloys, however, coercivity increases with Co content.

Keywords

AmorphousMagnetic propertiesNanostructure

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Type
Articles
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Journal of Materials Research , Volume 26 , Issue 16 , 28 August 2011 , pp. 2065 - 2071
Copyright
Copyright © Materials Research Society 2011

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