Increase of tritium permeation through resistant metals at 323 K by lattice defects

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:7246835

Maienschein, J L; McMurphy, F E; DuVal, V L

We report data on tritium permeation at 323 K and 373 K through annealed and single crystal copper for comparison with our earlier data on unannealed copper, and show that tritium transport along grain boundaries or other lattice defects controls the overall rate at 323 K in unannealed material. Measurements on unannealed and annealed gold foil also indicate the importance of defect transport, although with gold we could not reduce the defect concentration sufficiently to measure permeation through the metal lattice. We also include permeation data on aluminum, molybdenum, tungsten, beryllium, cadmium, iridium, lead, rhenium, and silver; all of these were probably dominated by tritium transport along lattice defects. 24 refs., 3 figs., 3 tabs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7246835
• Report Number(s): UCRL-97402; CONF-880505-24; ON: DE88011339
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104 -- Metals & Alloys-- Physical Properties
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400700* -- Radiochemistry & Nuclear Chemistry
ALKALINE EARTH METALS
ALUMINIUM
BERYLLIUM
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CADMIUM
COPPER
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DIFFUSION
ELEMENTS
GOLD
GRAIN BOUNDARIES
HYDROGEN ISOTOPES
IRIDIUM
ISOTOPES
LEAD
LIGHT NUCLEI
MEDIUM TEMPERATURE
METALS
MICROSTRUCTURE
MOLYBDENUM
NUCLEI
ODD-EVEN NUCLEI
PERMEABILITY
PLATINUM METALS
RADIOISOTOPES
RHENIUM
SILVER
TRANSITION ELEMENTS
TRITIUM
TUNGSTEN
YEARS LIVING RADIOISOTOPES