Unusual isotope effects for diffusion in VH 0. 50 and VT 0. 50

Journal Article · Fri Jul 01 04:00:00 EDT 1983 · Scr. Metall.; (United States)

DOI:https://doi.org/10.1016/0036-9748(83)90266-1· OSTI ID:5414599

Bowman, R C; Attalla, A; Craft, B D

Nonclassical diffusion processes for hydrogen isotopes in metals and other solids remain interesting and unresolved challenges. Although numerous diffusion measurements have been performed on dilute solutions of hydrogen, deuterium, and tritium in metals, relatively few results are available for diffusion of hydrogen isotopes in the hydride phases formed at higher concentrations. Since diffusion coefficients are generally dependent upon concentration, this disparity is partially due to the difficulty in preparing samples with identical contents. The vanadium hydride phases are promising candidates to study isotopic diffusion. Recent nuclear magnetic resonance (NMR) studies of proton spin-lattice relaxation times T/sub 1/ for b.c.t. ..beta..phase VH /SUB x/ (0.4

• Research Organization: Monsanto Research Corporation - Mound Miamisburg, Ohio 45342
• DOE Contract Number: AC04-76DP00053
• OSTI ID: 5414599
• Journal Information: Scr. Metall.; (United States), Journal Name: Scr. Metall.; (United States) Vol. 17:7; ISSN SCRMB
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
080201 -- Hydrogen-- Chemisorption Storage
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400202* -- Isotope Effects
Isotope Exchange
& Isotope Separation
ACTIVATION ENERGY
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHEMICAL REACTIONS
CONCENTRATION RATIO
DEUTERIUM
DIFFUSION
DIFFUSION LENGTH
DIMENSIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY
FERMIONS
HADRONS
HYDRIDATION
HYDRIDES
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPE DILUTION
ISOTOPE EFFECTS
ISOTOPES
LENGTH
LIGHT NUCLEI
MAGNETIC RESONANCE
METALS
NONMETALS
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PERMEABILITY
PROTONS
RADIOISOTOPES
RELAXATION
RELAXATION TIME
RESONANCE
SAMPLE PREPARATION
SPIN-LATTICE RELAXATION
STABLE ISOTOPES
TRACER TECHNIQUES
TRANSITION ELEMENT COMPOUNDS
TRITIUM
VANADIUM COMPOUNDS
VANADIUM HYDRIDES
YEARS LIVING RADIOISOTOPES