Nuclear microanalysis as a probe of impurity-defect interactions

Conference · Tue Jan 01 04:00:00 EST 1980

OSTI ID:5349334

Lewis, M. B.; Farrell, K.

It is shown that nuclear microanalysis offers unique opportunities for probing impurity migration and impurity-defect interactions in irradiated materials. The principles and practice of the technique are described and the special advantages and limitations are discussed. Procedures are outlined for extracting (1) impurity diffusion coefficients, (2) impurity-defect binding energies, and (3) trap generation coefficient of heavy ions used to create displacement damage. Examples involving the impurities deuterium and helium in austenitic stainles steels and nickel are described. Preliminary values are given for: the bulk diffusion coefficient of deuterium in austenite at 25/sup 0/C (1.4 x 10/sup -12/ cm/sup 2//s); the binding energies of deuterium with point defects in austenite and of helium-3 in nickel (0.33 and 2.1 eV, respectively); and a room-temperature trap generation coefficient for deuterium in nickel-ion-bombarded austenite of approx. 15 per incident nickel ion.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5349334
• Report Number(s): CONF-800205-13
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
CRYOGENIC FLUIDS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DATA PROCESSING
DEUTERIUM
ELEMENTS
FLUIDS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HYDROGEN
HYDROGEN ISOTOPES
IMPURITIES
ION IMPLANTATION
IRON ALLOYS
IRON BASE ALLOYS
ISOTOPES
LIGHT NUCLEI
MATERIALS
METALS
MICROANALYSIS
MIGRATION
MOLYBDENUM ALLOYS
NICKEL
NICKEL ALLOYS
NONMETALS
NUCLEI
ODD-ODD NUCLEI
POINT DEFECTS
PROCESSING
STABLE ISOTOPES
STAINLESS STEEL-316
STAINLESS STEELS
STEELS
TRANSITION ELEMENTS