Field-ion microscope studies of the defect structure of the primary state of damage of irradiated metals
Abstract
A review is presented of field ion microscope applications in studies of point defect distribution in irradiated metals. FIM results on the primary state of radiation damage in neutron and ion-irradiated iridium and tungsten, at both room-temperature and 78/sup 0/K, showed that it consists of: (1) isolated vacancies; (2) depleted zones; (3) compact vacancy clusters of voids; and (4) dislocation loops. The fraction of vacancies stored in the dislocation loops represented a small fraction of the total vacancy concentration; in the case of tungsten it was approximately 10 percent. These FIM observations provide a simple explanation of the low yield-factor, determined by transmission electron microscopy, for a number of ion-irradiated metals.
- Authors:
- Publication Date:
- Research Org.:
- Cornell Univ., Ithaca, N.Y. (USA)
- OSTI Identifier:
- 7360531
- Report Number(s):
- COO-3158-46; CONF-751164-4
TRN: 76-018210
- Resource Type:
- Conference
- Resource Relation:
- Conference: Conference on radiation damage in metals, Cincinnati, OH, USA, 9 Nov 1975
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; IRIDIUM; PHYSICAL RADIATION EFFECTS; TUNGSTEN; DISLOCATIONS; ION BEAMS; LOW TEMPERATURE; MEDIUM TEMPERATURE; NEUTRON BEAMS; VACANCIES; VOIDS; BEAMS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELEMENTS; LINE DEFECTS; METALS; NUCLEON BEAMS; PARTICLE BEAMS; PLATINUM METALS; POINT DEFECTS; RADIATION EFFECTS; REFRACTORY METALS; TRANSITION ELEMENTS; 360106* - Metals & Alloys- Radiation Effects
Citation Formats
Seidman, D. N. Field-ion microscope studies of the defect structure of the primary state of damage of irradiated metals. United States: N. p., 1975.
Web.
Seidman, D. N. Field-ion microscope studies of the defect structure of the primary state of damage of irradiated metals. United States.
Seidman, D. N. 1975.
"Field-ion microscope studies of the defect structure of the primary state of damage of irradiated metals". United States. https://www.osti.gov/servlets/purl/7360531.
@article{osti_7360531,
title = {Field-ion microscope studies of the defect structure of the primary state of damage of irradiated metals},
author = {Seidman, D. N.},
abstractNote = {A review is presented of field ion microscope applications in studies of point defect distribution in irradiated metals. FIM results on the primary state of radiation damage in neutron and ion-irradiated iridium and tungsten, at both room-temperature and 78/sup 0/K, showed that it consists of: (1) isolated vacancies; (2) depleted zones; (3) compact vacancy clusters of voids; and (4) dislocation loops. The fraction of vacancies stored in the dislocation loops represented a small fraction of the total vacancy concentration; in the case of tungsten it was approximately 10 percent. These FIM observations provide a simple explanation of the low yield-factor, determined by transmission electron microscopy, for a number of ion-irradiated metals.},
doi = {},
url = {https://www.osti.gov/biblio/7360531},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1975},
month = {Wed Jan 01 00:00:00 EST 1975}
}