Study of Hydrogen in Hf7Ni10 Combined with TiV0.8Cr1.2 by PAC

J.M. Gil; Benilde F.O. Costa; Patricia de Rango; Daniel Fruchart; Salvatore Miraglia; N.E. Skryabina

doi:10.4028/www.scientific.net/SSP.170.293

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HomeSolid State PhenomenaSolid State Phenomena Vol. 170Study of Hydrogen in Hf7Ni10 Combined with...

Study of Hydrogen in Hf₇Ni₁₀ Combined with TiV_0.8Cr_1.2 by PAC

Abstract:

Perturbed Angular Correlation (PAC) measurements were performed at room temperature on samples of Hf7Ni10 and of Hf7Ni10 combined with TiV0.8Cr1.2, and at temperatures in the range from 17 K to 350 K in a concentrated hydride of the combined alloy. The PAC results show that the Hf7Ni10 intergranular phase becomes amorphous in the combination process. The results for the hydride composite show in the Hf7Ni10 phase the formation of a stable interstitial hydrogen state below 100 K and a smooth rearrangement of the hydrogen atoms position above 100 K,corresponding to a slow diffusion movemnet of a short-range nature. A second phase transition is observed at around 300 K, presumably to aphase precursor of the hydrogen desorption of the hydride.

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Solid State Phenomena (Volume 170)

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293-297

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https://doi.org/10.4028/www.scientific.net/SSP.170.293

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April 2011

Authors:

J.M. Gil, Benilde F.O. Costa, Patricia de Rango, Daniel Fruchart, Salvatore Miraglia, N.E. Skryabina

Keywords:

Metal Hydride, Perturbed Angular Correlations (PAC), Transition Metal Alloy, Transition Metal Compounds

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