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Scientific article
English

Crystal structure of k-Hf9Mo4SiD16.8 deuteride

Published inChemistry of metals and alloys, vol. 1, p. 180-184
Publication date2008
Abstract

The k-Hf9Mo4SiD16.8 deuteride was prepared by deuteration of the intermetallic alloy at room temperature and 0.1 MPa D2 pressure. Synchrotron X-ray and neutron powder diffraction studies revealed that the initial crystal structure is preserved upon deuterium absorption (sp.gr. P63/mmc, a = 8.9553(1) Å, c = 9.0947(2), ∆a/a = 4.0%; ∆c/c = 5.5%; ∆V/V = 14.1%; ∆V/at.D = 2.33 Å3). Deuterium atoms occupy four interstitial positions: two tetrahedral Hf2Mo2 and Hf3Si sites and two triangular Hf3 sites.

Keywords
  • Hafnium alloys
  • Hydrides
  • Crystal structure
  • X-ray and neutron diffraction analysis
Research group
Citation (ISO format)
KOVAL’CHUCK, I. V. et al. Crystal structure of k-Hf<sub>9</sub>Mo<sub>4</sub>SiD<sub>16.8</sub> deuteride. In: Chemistry of metals and alloys, 2008, vol. 1, p. 180–184.
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Article (Published version)
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Identifiers
  • PID : unige:35422
ISSN of the journal1998-8079
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