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Kinetic nature of hard magnetic Nd50Al15Fe15Co20 bulk metallic glass with distinct glass transition

Published online by Cambridge University Press:  03 March 2011

L. Xia ,
M.B. Tang ,
H. Xu ,
M.X. Pan ,
D.Q. Zhao ,
W.H. Wang  and
Y.D. Dong
L. Xia*
Affiliation:
Institute of Materials, Shanghai University, Shanghai 200072 China; and Institute of Physics, Chinese Academy of Science, Beijing 100080, China
M.B. Tang
Affiliation:
Institute of Physics, Chinese Academy of Science, Beijing 100080, China
H. Xu
Affiliation:
Institute of Materials, Shanghai University, Shanghai 200072, China
M.X. Pan
Affiliation:
Institute of Physics, Chinese Academy of Science, Beijing 100080, China
D.Q. Zhao
Affiliation:
Institute of Physics, Chinese Academy of Science, Beijing 100080, China
W.H. Wang
Affiliation:
Institute of Physics, Chinese Academy of Science, Beijing 100080, China
Y.D. Dong
Affiliation:
Institute of Materials, Shanghai University, Shanghai 200072, China
*
* Address all correspondence to this author. e-mail: [email protected]
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Abstract

A hard magnetic Nd50Al15Fe15Co20 bulk metallic glass (BMG) was prepared in the shape of a rod up to 3 mm in diameter by suction casting. The glass transition and crystallization behaviors as well as their kinetic nature have been studied. In contrast to the previously reported hard magnetic Nd–Al–Fe–Co BMGs, Nd50Al15Fe15Co20 as-cast rod exhibits a distinct glass transition and multistep crystallization behaviors in the differential scanning calorimetry traces and lower coercivity. The BMG provides an ideal model for the investigation of glass transition and crystallization of hard magnetic Nd–Al–Fe–Co glass-forming alloys.

Keywords

Bulk metallic glassKineticsGlass transition
Type
Rapid Communications
Information
Journal of Materials Research , Volume 19 , Issue 5 , May 2004 , pp. 1307 - 1310
Copyright
Copyright © Materials Research Society 2004

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