Vacancy defect mobilities and binding energies obtained from annealing studies. [Review, migration energies, formation heat]

Conference · Mon Nov 01 00:00:00 EST 1976

OSTI ID:7330865

Balluffi, R. W.

A review is given of our current knowledge of the mobilities and binding energies of vacancy defects in a number of FCC and BCC metals (i.e., Cu, Ag, Au, Pt, W and Mo) as derived from annealing experiments after quenching and/or irradiation. It is concluded that vacancy defects are retained by quenching in all of these metals, and that Stage III annealing after irradiation occurs by the migration of vacancy type defects. The annealing process after quenching is potentially complex and in Au and Al may involve at least mono-, di-, and tri-vacancies. Annealing in Stage III after irradiation can also be complex and involve at least mono- and divacancies. Great difficulties are therefore involved in extracting reliable defect properties from such experiments. The monovacancy migration energies derived from annealing experiments after both quenching and irradiation are in reasonably good agreement for most of the metals. Also, the sum of the monovacancy migration energy and the formation energy is in reasonable agreement with the activation energy for self-diffusion due to monovacancies. The temperature of Stage III annealing after irradiation is generally lower than the temperature of the annealing after quenching because of a smaller number of defect jumps to annihilation in the former case. The limited available information about divacancies in the FCC metals indicates that they possess binding energies in the range 0.1 to 0.3 eV and migrate more easily than monovacancies. The even more limited information about trivacancies in Au and Al indicates that they are at least as mobile as divacancies and are rather loosely bound. No comparable information about divacancies and trivacancies in the BCC metals is yet available.

• Research Organization: Cornell Univ., Ithaca, NY (USA)
• Sponsoring Organization: US Energy Research and Development Administration (ERDA)
• DOE Contract Number: EY-76-S-02-2679
• OSTI ID: 7330865
• Report Number(s): COO-2679-8; CONF-761027-13; TRN: 77-006325
• Resource Relation: Conference: International conference on properties on atomic defects on metals, Argonne, IL, USA, 18 Oct 1976
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
PHYSICAL RADIATION EFFECTS
VACANCIES
COPPER
GOLD
MOLYBDENUM
PLATINUM
SILVER
TUNGSTEN
ANNEALING
ANNIHILATION
BCC LATTICES
BINDING ENERGY
ELECTRONS
FCC LATTICES
FORMATION HEAT
GOLD IONS
HOLE MOBILITY
HOLES
INTERSTITIALS
IRRADIATION
METALS
NEUTRONS
PROTONS
QUENCHING
REVIEWS
ATOMIC IONS
BARYONS
BASIC INTERACTIONS
CHARGED PARTICLES
CRYSTAL DEFECTS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
DOCUMENT TYPES
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY
ENTHALPY
FERMIONS
HADRONS
HEAT TREATMENTS
INTERACTIONS
IONS
LEPTONS
MOBILITY
NUCLEONS
PHYSICAL PROPERTIES
PLATINUM METALS
POINT DEFECTS
RADIATION EFFECTS
REACTION HEAT
REFRACTORY METALS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENTS
360104* - Metals & Alloys- Physical Properties
360106 - Metals & Alloys- Radiation Effects