6533b833fe1ef96bd129ca54
RESEARCH PRODUCT
In situ measurement of elastic properties of PdH , PdD , and PdT
Arnaud FabreArnaud FabreJérôme DemomentEric FinotSerge Contrerassubject
HydrogenHydrideMechanical EngineeringMetals and AlloysAnalytical chemistrychemistry.chemical_elementMineralogyPalladium hydrideYoung's moduluschemistry.chemical_compoundsymbols.namesakechemistryMechanics of MaterialsKinetic isotope effectMaterials ChemistrysymbolsCrystalliteStoichiometryPalladiumdescription
Abstract The Young’s modulus E of palladium hydride PdH x , deuteride PdD x and tritide PdT x were measured for studying the effect of both hydrogen stoichiometry x and isotope nature. A special technique based on optical detection of flexural modes of a palladium cylindrical microcantilever was adapted to in situ measurements to guarantee the sample homogeneity during the hydriding process. A 10% decrease in E was found between pure polycrystalline palladium and hydride phases. The non linear dependence observed with the H content was discussed in terms of lattice expansion, phonons and electronic properties. Sensitivity of the technique enables to distinguish an isotope effect on E .
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-08-01 | Journal of Alloys and Compounds |