INVESTIGATION OF HYDRIDING CHARACTERISTICS OF INTERMETALLIC COMPOUNDS. Third Quarterly Report, April 1, 1961-July 31, 1961
The hydriding characteristics of 161 different intermetallic phases are investigated. Of these, 51 are shown to react directly with hydrogen gas (15 of these form ternary hydride compounds). On the basis of these reactions, indirect evidence for the reaction of an additional 31 compounds is obtained. Pressure- temperature-composition relations are presented for the hydrides of 7 different intermetallic compounds. A partial analysis of these data indicates that a quantitative relation could be developed to predict whether or not a given compound has the potential ability of forming a hydride. This relation would be based on the size of available interstitial sites, metallic valence, coordination of metal-metal and metal-hydrogen atoms, dad elastic lattice strain. Evidence is presented that indicates that the greatest thermal stability is exhibited by those hydrogen atoms that are bonded in the smallest sites. Also, the maximum hydrogen absorption in a ternary hydride is not limited to that attainable by the individual components of the compound. (auth)
- Research Organization:
- Denver. Univ. Denver Research Inst.
- NSA Number:
- NSA-15-029626
- OSTI ID:
- 4837258
- Report Number(s):
- LAR-54
- Country of Publication:
- United States
- Language:
- English
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