Insights into the relation between crystal structure and deuterium desorption characteristics of Pd-Au-D alloys

D. E. Nanu; W. J. Legerstee; S. W.H. Eijt; W. G. Haije; J. F. Vente; M. G. Tucker; A. J. Böttger

doi:10.1016/j.actamat.2008.08.045

Insights into the relation between crystal structure and deuterium desorption characteristics of Pd-Au-D alloys

D. E. Nanu, W. J. Legerstee, S. W.H. Eijt, W. G. Haije, J. F. Vente, M. G. Tucker, A. J. Böttger

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Neutron diffraction and thermal desorption spectroscopy are used to determine the details in the crystallographic structure and the deuterium desorption characteristics of deuterated Pd-Au alloys. Compositions under investigation include alloys corresponding to both subcritical and supercritical conditions with respect to the α-β phase transitions. The effect of the Au-content on deuterium desorption properties is discussed in relation to the degree of deuterium loading and the phase diagram. Furthermore, the distribution of deuterium over the octahedral and tetrahedral interstitial sites is determined. The tetrahedral site occupancy increases with increasing Au content and is significant for both supercritical and subcritical phases.

Original language	English
Pages (from-to)	6132-6140
Number of pages	9
Journal	Acta Materialia
Volume	56
Issue number	20
DOIs	https://doi.org/10.1016/j.actamat.2008.08.045
State	Published - Dec 2008
Externally published	Yes

Funding

The authors gratefully acknowledge Ing. C. Kwakernaak from the Department of Material Science and Engineering of Delft University of Technology for electron probe microanalysis. This work is part of a joint research programme of the Materials innovation institute (M2i) (the former Netherlands Institute for Metals Research), and the Stichting voor Fundamenteel Onderzoek der Materie (FOM) financially supported by the Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO). Further financial support was received through SenterNovem. The neutron diffraction work at ISIS was made possible through a NWO Grant.

Funders	Funder number
Netherlands Institute for Metals Research
Stichting voor Fundamenteel Onderzoek der Materie
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Foundation for Fundamental Research on Matter
Materials Innovation Institute

Keywords

Hydrogen desorption
Interstitials
Neutron diffraction
Site occupancy
Transition metals

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10.1016/j.actamat.2008.08.045

Cite this

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abstract = "Neutron diffraction and thermal desorption spectroscopy are used to determine the details in the crystallographic structure and the deuterium desorption characteristics of deuterated Pd-Au alloys. Compositions under investigation include alloys corresponding to both subcritical and supercritical conditions with respect to the α-β phase transitions. The effect of the Au-content on deuterium desorption properties is discussed in relation to the degree of deuterium loading and the phase diagram. Furthermore, the distribution of deuterium over the octahedral and tetrahedral interstitial sites is determined. The tetrahedral site occupancy increases with increasing Au content and is significant for both supercritical and subcritical phases.",

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author = "Nanu, {D. E.} and Legerstee, {W. J.} and Eijt, {S. W.H.} and Haije, {W. G.} and Vente, {J. F.} and Tucker, {M. G.} and B{\"o}ttger, {A. J.}",

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AU - Nanu, D. E.

AU - Legerstee, W. J.

AU - Eijt, S. W.H.

AU - Haije, W. G.

AU - Vente, J. F.

AU - Tucker, M. G.

AU - Böttger, A. J.

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AB - Neutron diffraction and thermal desorption spectroscopy are used to determine the details in the crystallographic structure and the deuterium desorption characteristics of deuterated Pd-Au alloys. Compositions under investigation include alloys corresponding to both subcritical and supercritical conditions with respect to the α-β phase transitions. The effect of the Au-content on deuterium desorption properties is discussed in relation to the degree of deuterium loading and the phase diagram. Furthermore, the distribution of deuterium over the octahedral and tetrahedral interstitial sites is determined. The tetrahedral site occupancy increases with increasing Au content and is significant for both supercritical and subcritical phases.

KW - Hydrogen desorption

KW - Interstitials

KW - Neutron diffraction

KW - Site occupancy

KW - Transition metals

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Insights into the relation between crystal structure and deuterium desorption characteristics of Pd-Au-D alloys

Abstract

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Keywords

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