The diffusivity of hydrogen in the noble metals at low temperature

Journal Article · Fri Nov 01 00:00:00 EST 1985 · Acta Metall.; (United States)

DOI:https://doi.org/10.1016/0001-6160(85)90120-8· OSTI ID:5974862

Ishikawa, T; McLellan, R B

An electrolytic method has been used to measure the diffusivity of hydrogen in the noble metals Pt, Au, and Ag in the low-temperature range 280-330 K. The data obtained have been considered in conjunction with those for other noble metals (Pd and Cu) in order to draw conclusions concerning the interactions between dissolved H-atoms and lattice vacancies. It has been concluded that, at least in Pd, Cu, and Au, the H-vacancy interaction energy is too low to render diffusion anomalies observable a high temperatures. This is in accord with theoretical calculations based on the effective medium technique.

• Research Organization: Department of Mechanical Engineering and Materials Science, William Marsh Rice University, Houston, TX
• OSTI ID: 5974862
• Journal Information: Acta Metall.; (United States), Vol. 33:11
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
GOLD
ATOM TRANSPORT
CRYSTALLOGRAPHY
HYDROGEN
DIFFUSION
PLATINUM
SILVER
CHEMICAL REACTION KINETICS
INTERACTIONS
MEASURING METHODS
TEMPERATURE DEPENDENCE
VACANCIES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELEMENTS
KINETICS
METALS
NEUTRAL-PARTICLE TRANSPORT
NONMETALS
PLATINUM METALS
POINT DEFECTS
RADIATION TRANSPORT
REACTION KINETICS
TRANSITION ELEMENTS
360102* - Metals & Alloys- Structure & Phase Studies