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Observations of order in Pd–Y solid solutions and in Pd7Y

Published online by Cambridge University Press:  29 June 2016

Y. Sakamoto ,
M. Yoshida  and
Ted. B. Flanagan
Y. Sakamoto
Affiliation:
Department of Materials Science and Engineering, Nagasaki University, Nagasaki 852, Japan
M. Yoshida
Affiliation:
Department of Materials Science and Engineering, Nagasaki University, Nagasaki 852, Japan
Ted. B. Flanagan
Affiliation:
Department of Chemistry, The University of Vermont, Burlington, Vermont 05405
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Abstract

Electron microscopic observations, electrical resistivity, and lattice parameter measurements of annealed Pd-12.5 at. % Y alloy indicate the presence of long-range order in the form of a Pt7Cu superlattice. This is similar to the order found in Pd7Ce, which is also isomorphous with Pt7Cu. The order-disorder transformation temperature was found to be Tc = 783 ± 5 K. Evidence was found from resistivity measurements for the existence of an ordered structure in the hypostoichiometric alloys: Pd-10.0 at. % Y and Pd-8.0 at. % Y. The order-disorder transformation temperatures were lower than that for the stoichiometric alloy Pd7Y.

Type
Articles
Information
Journal of Materials Research , Volume 1 , Issue 6 , December 1986 , pp. 781 - 785
Copyright
Copyright © Materials Research Society 1986

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