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Crystalline-To-Amorphous Transformation of Intermetallic Compounds in the Zr-Fe-M System Induced by Irradiation

Published online by Cambridge University Press:  16 February 2011

Arthur T. Motta ,
Lawrence M. Howe  and
Paul R. Okamoto
Arthur T. Motta
Affiliation:
Dept. of Nuclear Engineering, Pennsylvania State University, University Park, PA, 16802, USA
Lawrence M. Howe
Affiliation:
AECL Research, Reactor Materials Research Branch, Chalk River Laboratories, Chalk River, Ontario, Canada, KOJ 1J0.
Paul R. Okamoto
Affiliation:
Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
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Abstract

The binary and ternary intermetallic compounds Zr3Fe, Zr2 Fe, (Zr0.5,Nb0.5)3Fe, Zr3(Fe0.9,Ni0.1) and Zr3(Fe0.5,Ni0.5) were subjected to 900 keV electron irradiation until amorphous to study the change in the dose-to-amorphization with temperature. The critical temperatures were observed to vary with dose rate, and with the type of compound. Hexagonal (Zr0.5,Nb0.5)3Fe had an appreciably lower critical temperature and higher dose to amorphization at low temperature than orthorombic Zr3Fe, whereas other orthorombic Zr3(Fex,NiI-x) compounds were essentially identical in behavior to Zr3Fe. The electron energy dependence of the dose-to-amorphization was studied in Zr3Fe between 250 and 900 keV. The analysis of the results gives displacement energies of EZrd = 26 eV, EFed = 18 eV in the Zr3Fe compound.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 373: Symposium Y – Microstructure of Irradiated Materials , 1994 , 183
Copyright
Copyright © Materials Research Society 1995

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References

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