Published December 23, 1985
| Version v1
Journal article
Composition-dependent hydrogen motion in a random alloy, V/sub x/Nb/sub 1-x/H/sub 0.2/: From localized motion at V atoms to long-range hydrogen diffusion
- 1. Ames Laboratory, United States Department of Energy and Departments of Physics and Materials Science and Engineering, Iowa State University, Ames, Iowa 50011
Description
Proton spin-lattice relaxation times (T1) measured for the first time across a random transition-metal alloy system, V/sub x/Nb/sub 1-x/H/sub 0.2/, from 100 to 700 K reveal (a) a suppression of hydride phase precipitation at low temperatures accompanied by enhanced retention of hydrogen in the solid-solution (α) phase compared to pure V or Nb, (b) hydrogen motion in the α phase at intermediate compositions governed by a distribution of activation energies, and (c) a transition to short, almost temperature-independent, T1 behavior in α-V/sub 0.1/Nb/sub 0.9/N/sub 0.2/ consistent with localized hydrogen motion around attracting V atoms
Additional details
Publishing Information
- Journal Title
- Phys. Rev. Lett.
- Journal Volume
- 55
- Journal Issue
- 26
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 2895-2898
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 17031257
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ACTIVATION ENERGY; CHEMICAL COMPOSITION; DIFFUSION; DYNAMICS; ELECTRON SPIN RESONANCE; HIGH TEMPERATURE; HYDROGEN; HYDROGENATION; INHIBITION; LOW TEMPERATURE; MEDIUM TEMPERATURE; NIOBIUM ALLOYS; RANDOMNESS; SOLID SOLUTIONS; SPIN-LATTICE RELAXATION; TEMPERATURE DEPENDENCE; VANADIUM ALLOYS
- Descriptors DEC
- ALLOYS; CHEMICAL REACTIONS; DISPERSIONS; ELEMENTS; ENERGY; HOMOGENEOUS MIXTURES; MAGNETIC RESONANCE; MECHANICS; MIXTURES; NONMETALS; RELAXATION; RESONANCE; SOLUTIONS