Diffusion of Deuterium in Amorphous Cordierite

Diffusion of deuterons from D2O vapor into cordierite was performed at elevated temperatures. The presence of deuterons is monitored with infrared absorption of OD− ions at 2630 cm−1. The diffusion coefficient D at 1273 K is about 2 × 10−11 m2/s. The activation energy E in the Arrhenius equation is 3 × 105 J/mol. Out-diffusion of D+ ions can be enhanced by application of an electric field.