Thermodynamic and magnetic properties of multicomponent (Fe, Ni)(70)Zr10B20 amorphous alloy powders made by mechanical alloying
UNSPECIFIED (2001) Thermodynamic and magnetic properties of multicomponent (Fe, Ni)(70)Zr10B20 amorphous alloy powders made by mechanical alloying. In: 10th International Conference on Rapidly Quenched and Metastable Materials (RQ10), BANGALORE, INDIA, AUG 23-27, 1999. Published in: MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 304 (Sp. Iss. SI). pp. 992-996.Full text not available from this repository.
The correlation between the thermodynamic and magnetic properties of mechanically alloyed (MAed) (Fe1-xNix)(70)Zr10B20 (x = 0.1-0.4) amorphous alloy powders was investigated. The activation energy (E-a) for primary crystallization of the b.c.c. alpha -Fe: phase decreased significantly: from 356.7 to 139.7 kJ/mol with increasing Ni/Fe ratio from 0.11 to 0.43 and then increased to 304 kJ/mol for the alloy with a Ni/Fe ratio of 0.67. The Curie temperatures of the (Fe1-xNix)(70)Zr10B20 (x = 0.1-0.4) alloy powders milled at 18h were found to be in the range 425-625 K. The room temperature coercivity of the as-milled amorphous powders was in the range 37-44 G. However, they were dramatically reduced to values in the range 11-24 G after annealing at temperatures from 250 to 575 K. The minimum coercivities obtained after in situ annealing of amorphous powder were 8 G for (Fe0.6Ni0.4)(70)Zr10B20 and 10 G for (Fe0.8Ni0.2)(70)Zr10B20, respectively. (C) 2001 Elsevier Science B.V. All rights reserved.
|Item Type:||Conference Item (UNSPECIFIED)|
T Technology > TA Engineering (General). Civil engineering (General)
|Journal or Publication Title:||MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING|
|Publisher:||ELSEVIER SCIENCE SA|
|Official Date:||31 May 2001|
|Number:||Sp. Iss. SI|
|Number of Pages:||5|
|Page Range:||pp. 992-996|
|Title of Event:||10th International Conference on Rapidly Quenched and Metastable Materials (RQ10)|
|Location of Event:||BANGALORE, INDIA|
|Date(s) of Event:||AUG 23-27, 1999|
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