Positron annihilation measurement of the vacancy formation enthalpy in copper. [25 to 1040/sup 0/C]

Conference · Mon Jan 01 04:00:00 EST 1979

OSTI ID:6236619

Fluss, M. J.; Smedskjaer, L. C.; Siegel, R. W.; Legnini, D. G.; Chason, M. K.

Doppler-broadening and lifetime data obtained for Cu in the temperature region approx. 25 to 1040/sup 0/C are presented. The experiment utilized a new source-implantation technique. The value of the deduced vacancy formation enthalpy is 1.31 +- 0.05 eV. Since the Doppler-broadening data were the primary source for the determination of the vacancy formation enthalpy, the analysis of these data is discussed. The suitability of introducing divacancies into the analysis is also considered. It is concluded that the measured formation enthalpy is that for monovacancies.

• Research Organization: Argonne National Lab., IL (USA)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6236619
• Report Number(s): CONF-790437--6
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ALKALI METAL ISOTOPES
ANNIHILATION
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
ARRHENIUS EQUATION
BASIC INTERACTIONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
COPPER
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DOPPLER BROADENING
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ELEMENTS
ENTHALPY
FERMIONS
HIGH TEMPERATURE
INTERACTIONS
ION IMPLANTATION
ISOTOPES
LEPTONS
LIFETIME
LIGHT NUCLEI
LINE BROADENING
MEDIUM TEMPERATURE
METALS
NUCLEI
ODD-ODD NUCLEI
PHYSICAL PROPERTIES
POINT DEFECTS
POSITRONS
RADIOISOTOPES
SODIUM 22
SODIUM ISOTOPES
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENTS
VACANCIES
VERY HIGH TEMPERATURE
YEARS LIVING RADIOISOTOPES