Effects of ionizing radiation in ceramics
- 1. Pacific Northwest Nat. Lab., Richland, WA (United States)
- 2. Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)
Description
The evolution of radiation damage in ceramics under highly ionizing conditions has been examined by irradiating a number of oxides with high-energy heavy ions and electrons simultaneously. α-Al2O3, MgTiO3, FeTiO3 and Ca2La8(SiO4)6O2 were irradiated with 1 MeV Kr+ or 1.5 MeV Xe+ and 1 MeV electrons. The irradiations were performed in a high-voltage electron microscope interfaced to an ion accelerator that enabled the in situ observation of the structural changes. The results indicate that simultaneous electron irradiation can retard or prevent amorphization by heavy ions. Comparison with similar experiments in metals suggests that highly ionizing radiation can anneal damage to the crystal lattice in ceramics by enhancing the mobility of point defects. (orig.)
Additional details
Publishing Information
- Journal Title
- Journal of Nuclear Materials
- Journal Volume
- 253
- Journal Page Range
- p. 113-119
- ISSN
- 0022-3115
- CODEN
- JNUMAM
Conference
- Title
- 5. international symposium on fabrication and properties of ceramics for fusion energy and other high radiation environment as part of the 99. annual meeting of the American Ceramics Society
- Dates
- 5-7 May 1997
- Place
- Cincinnati, OH (United States)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 29038645
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ALUMINIUM OXIDES; AMORPHOUS STATE; CALCIUM SILICATES; CERAMICS; DIFFUSION; ELECTRON BEAMS; ELECTRON DIFFRACTION; IONIZING RADIATIONS; IRON OXIDES; KEV RANGE 100-1000; KRYPTON IONS; LANTHANUM SILICATES; MAGNESIUM OXIDES; MEV RANGE 01-10; POINT DEFECTS; RADIATION EFFECTS; STOPPING POWER; THERMONUCLEAR REACTOR MATERIALS; TITANATES; TRANSMISSION ELECTRON MICROSCOPY; XENON IONS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALUMINIUM COMPOUNDS; BEAMS; CALCIUM COMPOUNDS; CHALCOGENIDES; CHARGED PARTICLES; COHERENT SCATTERING; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DIFFRACTION; ELECTRON MICROSCOPY; ENERGY RANGE; IONS; IRON COMPOUNDS; KEV RANGE; LANTHANUM COMPOUNDS; LEPTON BEAMS; MAGNESIUM COMPOUNDS; MATERIALS; MEV RANGE; MICROSCOPY; OXIDES; OXYGEN COMPOUNDS; PARTICLE BEAMS; RADIATIONS; RARE EARTH COMPOUNDS; SCATTERING; SILICATES; SILICON COMPOUNDS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Notes
- 29 refs.