Effects of Fabric Type, Specimen Size, and Irradiation Atmosphere on the Radiation Resistance of Polymer Composites at 77 K
The radiation resistance of polymer matrix composites to the mechanical strength changes at 77 K was studied with respect to factors such as reinforcing fabric type, specimen thickness, and irradiation atmosphere. As far as the E-glass and T-glass fabric composites are concerned, the radiation resistance is almost independent of these factors, in agreement with a degradation mechanism such that the composite degradation behavior is primarily determined by a change in the matrix ultimate strain due to irradiation. The radiation-resistance evaluation was made also for the bond strength of polymer matrix composites to stainless steel at 77 K. The radiation sensitivity of the bond strength appears to depend primarily on the load transfer mode at the composite/steel interface.
KeywordsBond Strength Flexural Strength Radiation Resistance Specimen Thickness Polymer Matrix Composite
Unable to display preview. Download preview PDF.
- 1.G. L. Kulcinski, J. M. Dupouy, and S. Ishino, Key Materials Issues for Near Term Fusion Reactors, J. Nucl. Mater. 141–143: 3 (1986).Google Scholar
- 2.S. Egusa, Irradiation Effects on and Degradation Mechanism of the Mechanical Properties of Polymer Matrix Composites at Low Temperatures, Adv. Cryogenic Eng. Mater. 36: 861 (1990).Google Scholar
- 3.H. Nakajima, et al., Tensile Properties of New Cryogenic Steels as Conduit Materials of Forced Flow Superconductors at 4 K, Adv. Cryogenic Eng. Mater. 34: 173 (1988).Google Scholar
- 4.R. Poehlchen, et al., The Mechanical Strength of Irradiated Electric Insulation of Superconducting Magnets, Adv. Cryogenic Eng. Mater. 36: 893 (1990).Google Scholar
- 8.A. Chapiro, “Radiation Chemistry of Polymeric Systems,” Interscience, New York (1962).Google Scholar
- 9.L. J. Broutman, Fiber-Reinforced Plastics, in: “Modern Composite Materials,” L. J. Broutman and R. H. Krock, eds., Addison-Wesley, Reading, Massachusetts (1967).Google Scholar