Neutron powder diffraction investigations of Nb-3(Al0.84Nb0.16) and Nb-3(Al0.84Nb0.16)H-2(2.52)

Authors
Andersson, Y Larsson, T Nolang, B Rundqvist, S
Citation
Y. Andersson et al., Neutron powder diffraction investigations of Nb-3(Al0.84Nb0.16) and Nb-3(Al0.84Nb0.16)H-2(2.52), J ALLOY COM, 306(1-2), 2000, pp. 193-196
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF ALLOYS AND COMPOUNDS
ISSN journal
09258388 → ACNP
Volume
306
Issue
1-2
Year of publication
2000
Pages
193 - 196
Database
ISI
SICI code
0925-8388(20000623)306:1-2<193:NPDION>2.0.ZU;2-C
Abstract
The crystal structures of Nb-3(Al0.84Nb0.16) and Nb-3(Al0.84Nb0.16)H-2(2.52 ) have been refined from neutron powder diffraction data using the Rietveld method. Nb-3(Al0.84Nb0.16) crystallizes in the cubic Cr3Si-type structure, space group Pm3n, with the unit cell parameter a = 5.1907(1) Angstrom, Z = 2. The dissolved deuterium atoms in Nb-3(Al0.84Nb0.16)H-2(2.52) occupy thr ee different tetrahedral sites and the unit cell parameter increases to a = 5.3627(2) Angstrom. (C) 2000 Elsevier Science S.A. All rights reserved.