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X-ray powder diffraction data for ErH2−xDx

Published online by Cambridge University Press:  29 February 2012

Mark A. Rodriguez ,
Robert M. Ferrizz ,
Clark S. Snow  and
James F. Browning
Mark A. Rodriguez*
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87185
Robert M. Ferrizz
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87185
Clark S. Snow
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87185
James F. Browning
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
*
a)Author to whom correspondence should be addressed. Electronic mail: [email protected]
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Abstract

X-ray powder diffraction data for ErH2−xDx formed by hydrogen (i.e., protium)–deuterium loading of Er metal are reported. Lattice parameters for the varying hydrogen–deuterium compositions followed Vergard’s law behavior. The cubic lattice parameter at room temperature for ErH2−xDx obeys a linear relationship according to the formula a=5.1287−1.1120×10−4⋅x, where a is the lattice parameter of the fluorite-type structure and x is the mole percent of deuterium. Microstrain measurements suggest a possible ordering of hydrogen and deuterium in the composition ErH1D1.

Keywords

erbium hydrideErD2ErH2X-ray diffractionhydrogendeuterium
Type
NEW DIFFRACTION DATA
Information
Powder Diffraction , Volume 23 , Issue 3 , September 2008 , pp. 259 - 264
Copyright
Copyright © Cambridge University Press 2008

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