RADIATION EFFECTS ON EPOXY CARBON FIBER COMPOSITE

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Carbon fiber-reinforced bisphenol-A epoxy matrix composite was evaluated for gamma radiation resistance. The composite was exposed to total gamma doses of 50, 100, and 200 Mrad. Irradiated and baseline samples were tested for tensile strength, hardness and evaluated using FTIR (Fourier transform infrared) spectroscopy and DSC (differential scanning calorimetry) for structural changes. Scanning electron microscopy was used to evaluate microstructural behavior. Mechanical testing of the composite bars revealed no apparent change in modulus, strain to failure, or fracture strength after exposures. However, testing of only the epoxy matrix revealed changes in hardness, thermal properties, and FTIR results with increasing gamma ... continued below

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Hoffman, E May 30, 2008.

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Carbon fiber-reinforced bisphenol-A epoxy matrix composite was evaluated for gamma radiation resistance. The composite was exposed to total gamma doses of 50, 100, and 200 Mrad. Irradiated and baseline samples were tested for tensile strength, hardness and evaluated using FTIR (Fourier transform infrared) spectroscopy and DSC (differential scanning calorimetry) for structural changes. Scanning electron microscopy was used to evaluate microstructural behavior. Mechanical testing of the composite bars revealed no apparent change in modulus, strain to failure, or fracture strength after exposures. However, testing of only the epoxy matrix revealed changes in hardness, thermal properties, and FTIR results with increasing gamma irradiation. The results suggest the epoxy within the composite can be affected by exposure to gamma irradiation.

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  • American Nuclear Society Conference

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  • Report No.: WSRC-STI-2008-00281
  • Grant Number: DE-AC09-96SR18500
  • Office of Scientific & Technical Information Report Number: 929469
  • Archival Resource Key: ark:/67531/metadc900136

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  • May 30, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 12, 2016, 4:36 p.m.

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Hoffman, E. RADIATION EFFECTS ON EPOXY CARBON FIBER COMPOSITE, article, May 30, 2008; [Aiken, South Carolina]. (digital.library.unt.edu/ark:/67531/metadc900136/: accessed August 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.