Abstract
Ti-Cr-V alloys are known to absorp protium (hydrogen atom) up to H/M = 2, while Cr-rich alloys absorb up to H/M = 1 because of the formation of mono-protides (mono-hydrides). However, few hydrogen isotope effects of the Ti-Cr-V alloys have been reported. This paper aims to clarify the hydrogen isotope on the absorption properties of the Ti-Cr-V alloys in a composition range near the boundary between the appearance regions of mono- and di-protides. It was found that the appearance region of the mono-dueteride was Cr-richer composition than that of the mono-protides. The absorption plateau pressure for deuterium was lower than that for protium in the appearance region of the di-protide and the di-deuteride, but higher in the appearance region of the mono-protides and the mono-deuteride. The hydrogen isotope effects on the plateau pressure were found to cause the difference in the appearance regions of the protides and the deuterides.
| Original language | English |
|---|---|
| Pages (from-to) | 641-644 |
| Number of pages | 4 |
| Journal | Materials Transactions |
| Volume | 44 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2003 Apr |
Keywords
- Deuteride
- Deuterium
- Hydride
- Hydrogen storage alloy
- Isotope effect
- Titanium-chromium-vanadium alloy
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering