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An apparatus employing a thermal conductivity bridge to compare the oxygen concentration in a gas stream before and after reaction with an inductively heated metallic pellet is described. The measurements are continuous and sensitive to rates of oxygen consumption of 10 −6 g/min. The method has been used to study oxidation of silicides, borides, carbides and pure metals in the range 900°–2100°C. Results reported here on the oxidation of copper at temperatures around 1000°C are in reasonable agreement with results obtained by more conventional methods in other laboratories, and with the Wagner theory of parabolic reactions.
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Joan B. Berkowitz-Mattuck (1964) studied this question.
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