ON THE INTERPRETATION OF RADIATION EFFECTS IN THE NOBLE METALS

Technical Report · Fri Oct 31 04:00:00 EST 1958

OSTI ID:4306206

Holmes, D K; Corbett, J W; Walker, R M; Koehler, J S; Seitz, F

The existing investigations of noble metals bombarded resr liquid helium temperatures suggest very strongly that a large fraction of the change in resistivity is associated with the production of intestitial atoms and vacancies. The interstitial atoms migrate in the range above about 15 deg K with activation energies near 0.1 ev aad, to a considerable extent, annihiliate vacancies. The migration occurring at the lowest temperatures probably involves close interstitial-vacancy pairs which coalensce. More isolated interstitial atoms migrate at somewhat higher temperatures and form clusters as well as annihilate vacancies. The migration is influenced significantly by foreign atoms. The annealing kinetics merit further investigation. The observations on mechanical properties are consistant with the migration of isolated interstitial atoms in the 30 to 50 deg K temperature range, but indicate that, at least for the case of irradiation with fast neutrons, there may be more complicated effects than those which seem to explain the major features of thae resistivity and dimensional changes. (auth)

• Research Organization: Oak Ridge National Lab., Tenn.; General Electric Co. Research Lab., Schenectady, N.Y.; Illinois. Univ., Urbana
• NSA Number: NSA-12-015163
• OSTI ID: 4306206
• Report Number(s): A/CONF.15/P/2385
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANNEALING
ATOMS
DEFECTS
DIFFUSION
ELECTRIC CONDUCTIVITY
ENERGY
EXCITATION
FAST NEUTRONS
HELIUM
LOW TEMPERATURE
MECHANICAL PROPERTIES
METALS
PHYSICS
RADIATION EFFECTS