A simple chemical rate theory of irradiation damage in graphite is developed. The equations relate the concentration of various types of lattice defect as a function of irradiation temperature, crystallite size and atomic displacement rate. Numerical values are proposed for the parameters and the pr
A rate theory approach to radiation damage in graphite
β Scribed by B.T Kelly
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 131 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0008-6223
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β¦ Synopsis
The characterization of property changes in various grades of near-isotropic, "binderless" grades of graphite as functions of fluence accumulated at 715Β°C from 0 to 42 x 10" neutrons/cm' (E > 50 keV) was made. Generally, the average coefficients of thermal expansion (CTE) from 20 to 600Β°C and the roomtemperature values for strengths, fracture strains, Young's moduli, shear moduli, and calculated figures of merit (FOM) for resistance to thermal shock all ultimately decreased with fluence.
π SIMILAR VOLUMES
observed etch-patterns seem to have no relation with the dislocation content of the crystals. The imphcations are discussed.