Accession Number : AD0841102

Title :   EXPLORATORY STUDIES ON THE PERFORMANCE OF SELECTED PAINT SYSTEMS WHEN SUBJECTED TO GAMMA RADIATION IN SIMULATED DEEP OCEAN ENVIRONMENTS.

Descriptive Note : Technical note,

Corporate Author : NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA

Personal Author(s) : Gardner, L. B. ; Hanna, A. E.

Report Date : AUG 1968

Pagination or Media Count : 31

Abstract : A nuclear radiation effects test program was performed on selected paint systems which could be used as protective coatings on radioisotopic power sources exposed in a marine environment. The paint systems were exposed to a total of 10 to the 9th power ergs/gm(C) of Co-60 gamma rays, determined from dose rate measurements by a 4 cu cm graphite wall ion chamber. The dose rate was held constant over a 3-month exposure of the paint systems simulating a deep ocean environment. No effects of pressure and a relative insensitivity to temperature were observed. No gross chemical changes were found in the simulated sea water solution. Based on a rather limited test and various instrumentation difficulties, an aluminum filled hydrocarbon and an epoxy were most resistant to the combined effects of gamma radiation and simulated deep ocean. This report describes the details of experimental design performance and data analysis. It delineates the limitations under which the above systems might be recommended for use. (Author)

Descriptors :   (*PAINTS, DEGRADATION), (*ENVIRONMENTAL TESTS, PAINTS), GAMMA RAYS, PROTECTIVE TREATMENTS, NUCLEAR RADIATION, SEA WATER, MODEL TESTS, PERFORMANCE(ENGINEERING), DOSE RATE, COBALT, RADIOACTIVE ISOTOPES, EXPOSURE(PHYSIOLOGY), COATINGS, INTENSITY, DEEP WATER, DETERIORATION, EPOXY RESINS, HYDROCARBONS.

Subject Categories : Coatings, Colorants and Finishes
      Marine Engineering
      Radioactiv, Radioactive Wastes & Fission Prod

Distribution Statement : APPROVED FOR PUBLIC RELEASE