The hydrogenation characteristics of Ti//2MO//x (M EQUVLNT Fe, Co, Ni; 0 less than equivalent to x less than 0. 5) compounds were investigated using a combined thermogravimetric analysis and differential thermal analysis technique, pressure-volume-temperature measurements and X-ray diffraction analysis. Pure Ti//2M (M EQUVLNT Co, Ni) intermetallics react with hydrogen in an irreproducible manner, reaching various H/Ti//2M composition ratios. Surface decomposition reactions catalyzed by surface impurities may account for this irregular behavior. Heating hydrogenated Ti//2M samples in a hydrogen atmosphere results in initial decomposition followed by disproportionation reactions which convert part of the Ti//2MH//x into TiH//2 and TiM. The oxygen-containing Ti//2MO//x compounds, however, do not display such disproportionation reactions.
|Number of pages||8|
|Journal||Journal of the Less-Common Metals|
|State||Published - 1 Jan 1980|
|Event||Proc of the Int Symp on the Prop and Appl of Met Hydrides - Colorado Springs, CO, USA|
Duration: 7 Apr 1980 → 11 Apr 1980
ASJC Scopus subject areas
- Engineering (all)