Shear and compressive properties of insulation after irradiation at 4 K

Journal Article · Sun Jun 01 04:00:00 EDT 1997 · Advances in Cryogenic Engineering

OSTI ID:476709

Reed, R ^[1]; Fabian, P; Hazelton, C ^[2]

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1. Cryogenic Materials, Inc., Boulder, CO (United States)
2. Composite Technology Development, Inc., Boulder, CO (United States); and others

Following irradiation at 4 K, we measured the shear and compressive properties of candidate insulation systems for ITER toroidal field coils. The insulation systems evaluated (suitable for either vacuum-pressure impregnation or preimpregnation processing) were epoxy, bismaleimide, and polyimide resins with S-2-glass reinforcement; some contained mica and polyimide film barriers. They were exposed to a fast neutron fluence of 1.8 X 10{sup 22} n/m{sup 2}. Results indicated that the shear strength and flexural modulus are more sensitive to irradiation than the compressive strength, modulus, and elongation. Comparison of irradiated materials and of various properties provides insight for selection of insulation systems.

• OSTI ID: 476709
• Report Number(s): CONF-950722--
• Journal Information: Advances in Cryogenic Engineering, Journal Name: Advances in Cryogenic Engineering Vol. 42A; ISSN 0065-2482; ISSN ACYEAC
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPRESSION STRENGTH
ELECTRICAL INSULATORS
ITER TOKAMAK
PHYSICAL RADIATION EFFECTS
SHEAR PROPERTIES
SUPERCONDUCTING COILS
TEMPERATURE RANGE 0000-0013 K
THERMONUCLEAR REACTOR MATERIALS
THERMOPLASTICS