Crystalline-to-amorphous transformation of intermetallic compounds in the Zr-Fe-M system induced by irradiation

Arthur Thompson Motta, Lawrence M. Howe, Paul R. Okamoto

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Abstract

The binary and ternary intermetallic compounds Zr3Fe, Zr2Fe, (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 orthorhombic Zr3Fe, whereas other orthorhombic Zr3(Fex,Ni1-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 EdZr = 26 eV, EdFe = 18 eV in the Zr3Fe compound.

Original languageEnglish (US)
Pages (from-to)183-188
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume373
StatePublished - 1995

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

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