Determination of oxygen chemical diffusion coefficients in single crystal strontium titanate by capacitance manometry

The use of the tensi-volumetric apparatus to study the non-stoichiometric behavior of strontium titanate was discussed. Oxidation kinetics of reduced single crystal strontium titanate were measured with an ultrasensitive capacitance manometer as the sample absorbed oxygen in response to a changing oxygen activity. The oxidation kinetics were found to fit a solution to Fick\u27s second law for rectangularly shaped samples.... The procedure selected for measurement of the oxidation kinetics, and the method of obtaining diffusion coefficients from the oxidation data was discussed along with potential sources of error of the system --Abstract, page ii