Hydrogen storage characteristics of Ti-Zr-Cr-V alloys

Sung Wook Cho, Chang Suck Han, Choong Nyeon Park, Etsuo Akiba

Research output: Contribution to journalArticlepeer-review

61 Citations (Scopus)

Abstract

The improvement of hydrogen storage characteristics by substituting zirconium for titanium in Ti-Cr-V alloys has been studied at 303 K. Zirconium substitution decreased the equilibrium pressure and the hysteresis of the P-C isotherm. However, it increased the slope of the P-C isotherm and decreased the hydrogen storage capacity by forming the ZrCr2 phase. By modifying the composition ratio of titanium to chromium, thereby suppressing the formation of the ZrCr2 phase, an alloy having very high hydrogen storage capacity was realized. Heat treatment of the alloys improved the flatness of the plateau greatly without a decrease in both the maximum and the effective hydrogen storage capacities.

Original languageEnglish
Pages (from-to)244-250
Number of pages7
JournalJournal of Alloys and Compounds
Volume289
Issue number1-2
DOIs
Publication statusPublished - Jul 20 1999

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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