THE EFFECT OF NUCLEAR RADIATION ON SEALS, GASKETS, AND SEALANTS. Technical Memorandum No. 8

Technical Report · Sun Nov 30 04:00:00 EST 1958

OSTI ID:4274333

Broadway, N J; Palinchak, S

Nitrile, neoprene, and Thiokol rubbers were irradiated as gaskets, seals, or sealants for operation below 300 deg F. Thiokol was evaluated in JP-4 fuel as a sealant and found to perform satisfactorily to a dosage of 3.5 x 1O/sup 9/ ergs/g(C). Nitrile and neoprene were evaluated only in air and found to be resistant to 1 x 10/sup 10/ and 1 x 1O/sup 9/ ergs/g(C), respectively. For operation above 300 deg F, fluorocarbon elastomers and a number of silicone materials were evaluated. In the nonelastomer class Teflon was irradiated as a seal. Viton A and Elastomer 214 softened in air at 6 x 1O/sup 8/ ergs/g(C) with retention of rubber-like properties. A dimethyl silastic 0-ring retained flexibility in a vacuum seal at a dosage of 2 x 10/sup 11/ ergs/g(C), while the Silastic 50-24-480, used in an oil seal for 48 to 50 hours at 450 deg F, withstood a radiation dosage of 1.2 x 1O/sup 9/ ergs/g(C). (J.R.D.)

• Research Organization: Battelle Memorial Inst. Radiation Effects Information Center, Columbus, Ohio
• NSA Number: NSA-13-005891
• OSTI ID: 4274333
• Report Number(s): NP-7096
• Country of Publication: United States
• Language: English

Related Subjects

AIR
CYANIDES
ELASTOMERS
FLUORINATED HYDROCARBONS
NEOPRENE
NITRILES
ORGANIC SULFUR COMPOUNDS
POLYMERS
RADIATION DOSES
RADIATION EFFECTS
RADIATION EFFECTS ON MATERIALS
RUBBER
SEALS
SILASTIC
SILICONES
TEFLON
TEMPERATURE
THIOKOL
VITON