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Influence of boron content on the amorphization rate of Co–B mixtures by mechanical alloying

Published online by Cambridge University Press:  31 January 2011

A. Corrias ,
G. Ennas ,
G. Marongiu ,
A. Musinu  and
G. Paschina
A. Corrias
Affiliation:
Dipartimento di Scienze Chimiche, Università di Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
G. Ennas
Affiliation:
Dipartimento di Scienze Chimiche, Università di Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
G. Marongiu
Affiliation:
Dipartimento di Scienze Chimiche, Università di Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
A. Musinu
Affiliation:
Dipartimento di Scienze Chimiche, Università di Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
G. Paschina
Affiliation:
Dipartimento di Scienze Chimiche, Università di Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
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Abstract

Amorphous cobalt-boron alloy powders have been prepared by a high energetic ball mill at room temperature starting from different Co/B ratios. They were characterized by means of x-ray diffraction, scanning and transmission electron microscopy, and differential scanning calorimetry. Ball milling of Co–B mixtures induces solid-state amorphization which becomes faster with increasing boron content. After maximum amorphization ball milling leads to crystallization of t-Co2B in all the binary samples.

Type
Articles
Information
Journal of Materials Research , Volume 8 , Issue 6 , June 1993 , pp. 1327 - 1333
Copyright
Copyright © Materials Research Society 1993

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References

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