FISSION-FRAGMENT-INDUCED STRESSES IN CERAMIC MATERIALS

Technical Report · Sat Jun 01 04:00:00 EDT 1963

OSTI ID:4714172

Elleman, T S; Price, R B; Sunderman, D N

Fission fragmerts were recoiled into the surface of thin ceramic specimens and then the curvature produced in the specimens by the surface stresses induced was measured. Since induced curvatures were small, light- interference measurements were employed to give a sensitive measuremert of specimen deflection. Results were obtained for alumina, beryllia, zirconia, quartz, magnesia, silicon carbide, and carbon. Both single-crystal and polycrystalline specimens were studied for some materials. Radiationexpansion coefficients were calculated and used to estimate the tensile and compressive stresses produced by fissionfragment irradiation of spherical ceramic coatings. The largest expansion coefficients were obtained for silicon carbide and pyrolytic carbon, while magnesia gave the smallest expansion coefficient. Monoclinic zirconia con tracted during fission-fragment bombardment, apparently due to radioinduced phase transformation to a more dense phase. (auth)

• Research Organization: Battelle Memorial Inst., Columbus, Ohio
• DOE Contract Number: W-7405-ENG-92
• NSA Number: NSA-17-027888
• OSTI ID: 4714172
• Report Number(s): BMI-1635
• Country of Publication: United States
• Language: English

Related Subjects

ALUMINUM OXIDES
BERYLLIUM OXIDES
CARBON
CERAMICS
COATING
EXPANSION
FISSION PRODUCTS
IRRADIATION
MAGNESIUM OXIDES
MEASURED VALUES
METALS, CERAMICS, AND OTHER MATERIALS
MONOCRYSTALS
QUARTZ
RADIATION EFFECTS
SILICON CARBIDES
STRESSES
SURFACES
ZIRCONIUM OXIDES