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A Comparative Study of The Crystallization of Ni-P Amorphous Alloys Produced By Ion-Implantation And Melt Spinning.

Published online by Cambridge University Press:  26 February 2011

James Hamlyn-Harris ,
D. H. St. John  and
D. K. Sood
James Hamlyn-Harris
Affiliation:
Dept. Metallurgy & Mining, Royal Melbourne Institute of Technology, 124 La Trobe Street, Melbourne, 3000, Australia
D. H. St. John
Affiliation:
Dept. Metallurgy & Mining, Royal Melbourne Institute of Technology, 124 La Trobe Street, Melbourne, 3000, Australia
D. K. Sood
Affiliation:
Microelectronics Technology Centre, Royal Melbourne Institute of Technology, 124 La Trobe Street, Melbourne, 3000, Australia
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Abstract

Implantation of 4OkeV P+ ions into high purity Ni was employed at room temperature to a dose of 3×10E17 ions/cm2 to produce an 1100 A thick amorphous surface alloy of Ni-14 wt% P. Commercially available melt spun metallic glass ribbons of nominal composition, Ni-il wt% P were used for comparison of crystallization behaviour studied with TEM and RBS techniques. The DTA analysis was employed to construct a TTT curve for the melt spun glass, which was then used as a guide for selecting time and temperature of crystallization of the implanted amorphous alloy. The melt implanted glass is found to be less stable and crystallizes more readily than melt spun glass of similar composition. A detailed study on nucleation and growth of crystallites, mode of crystallization and effect of surface proximity will be presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 51: Symposium A – Beam-Solid Interactions and Phase Transformations , 1985 , 497
Copyright
Copyright © Materials Research Society 1985

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References

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