Hydrogen Diffusion Behavior in Titanium-Chromium Hydrides with Laves Structures
- Monsanto Research Corporation, Miamisburg, OH (United States)
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
Extensive NMR measurements of the proton relaxation times have been performed on low (i.e., α-phase) and intermediate (i.e., α´-phase) hydrogen concentrations in TiCr2Hx with both the hexagonal Cl4 and cubic Cl5 Laves structures. The relaxation times indicate rapid diffusion rates above 200 K for all the TiCr2Hx phases; however, large differences in the diffusion activation energies are observed. This behavior is associated with the hydrogen interstitial site occupancies and diffusion pathways becoming restricted in the Cl4 structure.
- Research Organization:
- Monsanto Research Corporation, Miamisburg, OH (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- DOE Contract Number:
- AC04-76DP00053; AC02-76CH00016
- OSTI ID:
- 965899
- Report Number(s):
- MLM--2901(OP)
- Country of Publication:
- United States
- Language:
- English
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