A high pressure investigation of Pd and the Pd–H system

The effect of high pressure (3.5 GPa) on the Pd and Pd–H systems has been investigated. We have been able to induce a cubic–monoclinic structural transformation in the case of pure Pd treated at 450°C for 5 h. Hydrogen has been introduced at high pressures using an alternative hydrogen source (C 14H...

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Bibliographic Details
Published in:Journal of alloys and compounds 1999-09, Vol.291 (1), p.L1-L5
Main Authors: dos Santos, D.S, Miraglia, S, Fruchart, D
Format: Article
Language:English
Subjects:
Applied sciences
Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
High pressure
Hydrogen in metals
Materials science
Metals. Metallurgy
Pd–H system
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
Structural transformation
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Summary:The effect of high pressure (3.5 GPa) on the Pd and Pd–H systems has been investigated. We have been able to induce a cubic–monoclinic structural transformation in the case of pure Pd treated at 450°C for 5 h. Hydrogen has been introduced at high pressures using an alternative hydrogen source (C 14H 10). It is shown that such a route can be operated to produce vacancy-ordered phases that are stable at ambient pressure and temperature.
ISSN:0925-8388
1873-4669
DOI:10.1016/S0925-8388(99)00281-9