Effects of environment and gamma irradiation on the mechanical properties of high density polyethylene. [Construction material for LLW high-integrity containers]
An evaluation was made of the effects of environment and gamma irradiation on the short-term tensile and creep properties of Marlex CL-100, a highly cross-linked high-density polyethylene. This material is being considered as a constructional material for a low-level radioactive waste high-integrity container. It was found that the chemical environments studied could be beneficial or detrimental to strength and ductility depending on the type of mechanical property test and the nature of the exposure of the polyethylene to the chemical environment. Gamma irradiation to a sufficiently high dose prior to tensile or creep testing increased the strength and decreased the ductility. In-test irradiation, however, could increase or decrease the creep rate depending on the dose rate and applied stress.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 5819623
- Report Number(s):
- NUREG/CR-4607; BNL-NUREG-51991; ON: TI86010745
- Country of Publication:
- United States
- Language:
- English
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12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CONTAINERS
MATERIALS TESTING
POLYETHYLENES
RADIATION EFFECTS
CREEP
EXPERIMENTAL DATA
GAMMA RADIATION
TENSILE PROPERTIES
DATA
ELECTROMAGNETIC RADIATION
INFORMATION
IONIZING RADIATIONS
MECHANICAL PROPERTIES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
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POLYOLEFINS
RADIATIONS
TESTING
360406* - Materials- Polymers & Plastics- Radiation Effects- (-1987)
052002 - Nuclear Fuels- Waste Disposal & Storage