Electrical resistance measurements in carbon-carbon composites
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abstract
In-situ electrical resistance of carbon-carbon composites is measured in an oxidizing environment at 900 C. Scanning electron and optical microscopy are used to interpret the physical damage incurred from oxidation and its impact on the mechanical and electrical properties of the carbon-carbon substrate. The interpretation on the relationships between the percent mass loss, shear modulus, and electrical resistance encouraged future tests. Rescor 780 alumina oxide castable ceramic test fixture used for the measurement is designed and fabricated.