Abstract

Tritium diffusion coefficients and deuterium solubilities were measured for silicon carbide. At 500° to 1300° C, measured tritium diffusion coefficients were much lower than the recorded values for metals, whereas the activation energies for diffusion were much higher (30 to 75 kcal/mol). The solubility of deuterium in silicon carbide decreased as temperature increased and exhibited a pressure dependence of ∼P1l2.

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