On the stabilization of Zr5Al3 in the Mn5Si3-type structure by interstitial oxygen

S. J. Kim, R. J. Kematick, S. S. Yi, H. F. Franzen

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Abstract

The W5Si3-type (tetragonal) to Mn5Si3-type (hexagonal) phase transition in Zr5Al3 was studied by high temperature X-ray diffraction. It was found that dissolved oxygen was present in the octahedral origin position in arc-melted Zr5Al3 samples at the 0.1 wt.% level. The rate of the tetragonal to hexagonal transition was consistent with a thermally driven transition as opposed to an interstitial oxidation.

Original languageEnglish
Pages (from-to)55-59
Number of pages5
JournalJournal of The Less-Common Metals
Volume137
Issue number1-2
DOIs
StatePublished - 1 Feb 1988

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