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Titolo:
Study of the ZrCr0.7Ni1.3 multiphased system under hydrogen pressure by in-situ neutron diffraction
Autore:
Bououdina, M; Soubeyroux, JL; Fruchart, D;
Indirizzi:
CNRS, Cristallog Lab, F-38042 Grenoble 9, France CNRS Grenoble France 9CNRS, Cristallog Lab, F-38042 Grenoble 9, France
Titolo Testata:
JOURNAL OF ALLOYS AND COMPOUNDS
fascicolo: 2, volume: 311, anno: 2000,
pagine: 248 - 251
SICI:
0925-8388(20001026)311:2<248:SOTZMS>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Keywords:
hydrogen storage materials; energy storage materials; crystal structure; neutron diffraction; X-ray diffraction;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
9
Recensione:
Indirizzi per estratti:
Indirizzo: Bououdina, M Univ London Queen Mary & Westfield Coll, Dept Mat, Mile End Rd, London E1 4NS, England Univ London Queen Mary & Westfield Coll Mile End Rd London England E1 4NS
Citazione:
M. Bououdina et al., "Study of the ZrCr0.7Ni1.3 multiphased system under hydrogen pressure by in-situ neutron diffraction", J ALLOY COM, 311(2), 2000, pp. 248-251

Abstract

Both X-ray and neutron diffraction Rietveld analyses show that the as-castZrCr0.7Ni1.3 alloy crystallises with the C15-type Laves phase type structure, with the presence of >30 wt.% Zr7Ni10 and a few weight percent chromium. After annealing at 1373 K, we observed the disappearance of chromium metal and a reduction by more than half of Zr7Ni10. P-C-T measurements performed on the as-cast material show an absorption capacity of about 0.9 H/AB(2) at 323 K and under P = 10 bar. In-situ neutron diffraction experiments performed at 323 It under deuterium gas pressure reveal that, after full hydrogenation of the sample, the Zr7Ni10 phase transforms into an amorphous phase, but recrystallises under vacuum when the temperature is raised above 373 K. (C) 2000 Elsevier Science S.A. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 14:56:02