In-situ studies of cascade defect formation at T < 10/sup 0/K
Conference
·
OSTI ID:6055376
Thin films of Ag and Au were ion-irradiated at temperature (T) < 10/sup 0/K and simultaneously observed using the Argonne National Laboratory high-voltage electron microscope (HVEM) ion-beam interface system. Displacement cascades were produced by Kr/sup +/ ion bombardment in the energy range 20 to 140 keV. For Ag, 20% of the 20-keV cascades and 100% of the 100-keV cascades produced observable contrast. Analysis of the observed dynamical black-white (BW)-contrast indicates that the clusters are of vacancy type. Subcascades were observed in the high-energy irradiations. The present results demonstrate that, during the evolution of displacement cascades in Ag and Au, extensive athermal rearrangement of vacancies occurs which gives rise to clustering and collapse to dislocation loops.
- Research Organization:
- Northwestern Univ., Evanston, IL (USA). Dept. of Materials Science and Engineering; Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6055376
- Report Number(s):
- CONF-830819-1; ON: DE83014309
- Country of Publication:
- United States
- Language:
- English
Similar Records
Molecular dynamics studies of defect production and clustering in energetic displacement cascades in copper
Molecular dynamics studies of defect production and clustering in energetic displacement cascades in copper
In-situ study of cascade defects in silver by simultaneous transmission electron microscopy and electrical resistivity measurements at low temperatures
Conference
·
Sun Mar 08 23:00:00 EST 1992
·
OSTI ID:5521925
Molecular dynamics studies of defect production and clustering in energetic displacement cascades in copper
Conference
·
Sun Mar 08 23:00:00 EST 1992
·
OSTI ID:10131034
In-situ study of cascade defects in silver by simultaneous transmission electron microscopy and electrical resistivity measurements at low temperatures
Conference
·
Sat Nov 30 23:00:00 EST 1985
·
OSTI ID:6198503
Related Subjects
36 MATERIALS SCIENCE
360106* -- Metals & Alloys-- Radiation Effects
BEAMS
CHARGED PARTICLES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DISLOCATIONS
ELECTRON MICROSCOPY
ELEMENTS
ENERGY RANGE
FILMS
GOLD
ION BEAMS
IONS
KEV RANGE
KRYPTON IONS
LINE DEFECTS
METALS
MICROSCOPY
MICROSTRUCTURE
PHYSICAL RADIATION EFFECTS
POINT DEFECTS
RADIATION EFFECTS
SILVER
THIN FILMS
TRANSITION ELEMENTS
VACANCIES
360106* -- Metals & Alloys-- Radiation Effects
BEAMS
CHARGED PARTICLES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DISLOCATIONS
ELECTRON MICROSCOPY
ELEMENTS
ENERGY RANGE
FILMS
GOLD
ION BEAMS
IONS
KEV RANGE
KRYPTON IONS
LINE DEFECTS
METALS
MICROSCOPY
MICROSTRUCTURE
PHYSICAL RADIATION EFFECTS
POINT DEFECTS
RADIATION EFFECTS
SILVER
THIN FILMS
TRANSITION ELEMENTS
VACANCIES