Some estimates of the irradiation creep constant of pyrocarbon contained in the coatings of reactor fuel particles

✍ Scribed by S.N Buckley; S.A Manthorpe; D.G Martin

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 131 KB
• Volume: 13
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(75)90215-8

✦ Synopsis

The characterization of property changes in various grades of near-isotropic, "binderless" grades of graphite as functions of fluence accumulated at 715°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 600°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.