Thermotransport of hydrogen and deuterium in vanadium-niobium, vanadium-titanium, and vanadium-chromium alloys
Thermotransport of hydrogen and deuterium in vanadium alloyed with either niobium, titanium, or chromium is much greater than in pure vanadium, and additions of vanadium to niobium similarly increase thermotransport of hydrogen and deuterium over that observed in pure niobium. In all cases, the heat of transport was positive and was significantly greater for deuterium than for hydrogen. The results are consistent with an atomistic model in which the temperature dependence of atomic jump frequencies is the dominant factor in thermotransport with a small bias in the direction of atomic jumps. There is evidence that differences between the heats of transport for hydrogen and deuteriu may be related to isotope effects in the activation energies for diffusion.
- Research Organization:
- Department of Materials Science and Engineering, Iowa State University, Iowa City, Iowa
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 5581527
- Journal Information:
- Metall. Trans., A; (United States), Journal Name: Metall. Trans., A; (United States) Vol. 14A; ISSN MTTAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
ATOM TRANSPORT
CHROMIUM ADDITIONS
CHROMIUM ALLOYS
COMPARATIVE EVALUATIONS
DEUTERIUM
DIFFUSION
ELEMENTS
HYDROGEN
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
NEUTRAL-PARTICLE TRANSPORT
NIOBIUM ADDITIONS
NIOBIUM ALLOYS
NONMETALS
NUCLEI
ODD-ODD NUCLEI
PHYSICAL PROPERTIES
RADIATION TRANSPORT
STABLE ISOTOPES
THERMAL CONDUCTIVITY
THERMAL DIFFUSION
THERMODYNAMIC PROPERTIES
TITANIUM ADDITIONS
TITANIUM ALLOYS
VANADIUM ALLOYS