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Irradiation effects studies of NERVA materialsSeveral materials used in the NERVA project were irradiated at cryogenic temperatures to neutron fluences between 10 to the 17th and 10 to the 19th power newtons per square centimeter. Tensile properties were determined over a temperature range to evaluate the effects of irradiation on the material properties. The expected radiation damage typical of other materials was observed. A general increase in strength and decrease in ductility occurred. The effects at liquid nitrogen temperatures are more pronounced since radiation induced defects are not annealed out.
Document ID
19720010028
Document Type
Conference Paper
Authors
Demastry, J. A. (Westinghouse Electric Corp. Pittsburgh, PA, United States)
Merrick, T. P. (Westinghouse Electric Corp. Pittsburgh, PA, United States)
Date Acquired
August 6, 2013
Publication Date
January 1, 1972
Publication Information
Publication: NASA, Washington Proc. of the Natl. Symp. on Nat. and Manmade Radiation in Space
Subject Category
MATERIALS, NONMETALLIC
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19720009951Analytic PrimaryProceedings of the National Symposium on Natural and Manmade Radiation in Space