Paper Title:
Effect of Applied External Stress on Hydrogen Desorption from Metal Hydrides
  Abstract

The effect of hydrostatic pressure mechanically applied to hydride on the equilibrium hydrogen gas pressure and temperature have been examined theoretically. From free energy calculations where elastic energy is taken into account, equilibrium gas pressure and temperature increases and decreases with increasing applied compressive stress, respectively. In the case of magnesium hydride, equilibrium temperature decreases to 63 °C at the hydrogen gas pressure being 1 atom when volume expansion at hydriding is perfectly suppressed by an external compressive stress. The temperature is remarkably lower than that obtained by alloying various elements.

  Info
Periodical
Advanced Materials Research (Volumes 26-28)
Edited by
Young Won Chang, Nack J. Kim and Chong Soo Lee
Pages
217-220
DOI
10.4028/www.scientific.net/AMR.26-28.217
Citation
R. Matsumoto, K. Tanaka, K. Kishida, H. Inui, "Effect of Applied External Stress on Hydrogen Desorption from Metal Hydrides", Advanced Materials Research, Vols. 26-28, pp. 217-220, 2007
Online since
October 2007
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Price
$32.00
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