Effects of neutron-irradiation on MgAl2O4 and Al2O3
Creators
- 1. Georgia Inst. of Tech., Atlanta (USA). School of Textile Engineering
- 2. Los Alamos National Lab., NM (USA)
Description
Specimens of MgAl2O4 and Al2O3 were irradiated to a neutron fluence of approximately 2 . 1026 n/m2, E > 0.1 MeV at 660 K. Tensile strength was seen to decrease by 25.6% for Al2O3 and to increase by 24.4% for MgAl2O4. Sensity measurements revealed that Al2O3 swelled by 3.22% while MgAl2O4 densified slightly (0.316%). Both exhibited mixed failure modes in both control and irradiated samples with a shift from intergranular to transgranular for MgAl2O4 and vice-sversa for Al2O3 upon irradiation. The MgAl2O4 damage microstructure consisted of interstitial dislocation loops and denuded grain boundaries. The microstructure of irradiated Al2O3 revealed fine areas of damage assumed to be interstitial dislocation loops and voids. Strength and structural changes are correlated with the results and compared with previously obtained results. (orig.)
Additional details
Publishing Information
- Journal Title
- J. Nucl. Mater.
- Journal Volume
- 141-143
- Journal Issue
- pt.A
- Series
- J. Nucl. Mater.
- Journal Page Range
- 401-404
- ISSN
- 0022-3115
- CODEN
- JNUMA
Conference
- Title
- 2. international conference on fusion reactor materials (ICFRM-2).
- Dates
- 13-17 Apr 1986.
- Place
- Chicago, IL (USA).
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 18071150
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- ALUMINIUM OXIDES; CERAMICS; CHEMICAL COMPOSITION; DENSITY; DISLOCATIONS; EXPERIMENTAL DATA; FRACTOGRAPHY; GRAIN BOUNDARIES; HIGH TEMPERATURE; INTERSTITIALS; MAGNESIUM OXIDES; MICROSTRUCTURE; NEUTRON FLUENCE; PHYSICAL RADIATION EFFECTS; SCANNING ELECTRON MICROSCOPY; SWELLING; TENSILE PROPERTIES; THERMONUCLEAR REACTOR MATERIAL; TRANSMISSION ELECTRON MICROSCO
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALUMINIUM COMPOUNDS; CHALCOGENIDES; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DATA; DEFORMATION; ELECTRON MICROSCOPY; INFORMATION; LINE DEFECTS; MAGNESIUM COMPOUNDS; MATERIALS; MECHANICAL PROPERTIES; MICROSCOPY; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; POINT DEFECTS; RADIATION EFFECTS
Optional Information
- Notes
- Also published in report DOE/ER--0113/5.