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Effects of Thermal Cycling on the Physical Properties of VH_x

Bowman, R. C., Jr. and Lynch, F. E. and Marmaro, R. W. and Luo, C. H. and Fultz, B. and Cantrell, J. S. and Chandra, D. (1993) Effects of Thermal Cycling on the Physical Properties of VH_x. Zeitschrift für Physikalische Chemie, 181 (1-2). pp. 269-273. ISSN 0942-9352.

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A thousand thermal cycles of vanadium hydride across the β-γ mixed phase region decreased the reversible hydrogen storage capacity and increased the absorption/desorption pressure hysteresis ratio. Thermal cycling also produced a large increase in hydride surface area. Nevertheless, X-ray diffraction and transmission electron microscopy showed the measured crystalline size to be larger after the 1000 cycles than for activated materials. These results were not anticipated from the behavior exhibited by other metal hydrides.

Item Type:Article
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Bowman, R. C., Jr.0000-0002-2114-1713
Fultz, B.0000-0002-6364-8782
Additional Information:© 1993 Oldenbourg Wissenschaftsverlag, München. Presented at the International Symposium on Metal-Hydrogen Systems, Fundamentals and Applications, Uppsala, Sweden, June 8-12, 1992.
Subject Keywords:properties of VHx; particle morphology after cycling; crystal lattice strain; scanning EM; transmission EM
Issue or Number:1-2
Record Number:CaltechAUTHORS:20180803-085352765
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88559
Deposited By: Tony Diaz
Deposited On:03 Aug 2018 17:05
Last Modified:03 Oct 2019 20:07

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