Adaptation of an electrochemical system for measurement and regulation of oxygen partial pressure to a symmetrical thermogravimetric analysis system developed using a Cahn 1000 electrobalance

A. CANEIRO; P. BAVDAZ; J. FOULETIER; J.P. ABRIATA

REVIEW OF SCIENTIFIC INSTRUMENTS

AMER INST PHYSICS

Lugar: New York; Año: 1982 vol. 53 p. 1072 - 1075

0034-6748

We report equipment consisting of the coupling of an electrochemical system for measurementand regulation of oxygen partial pressure (P 02) to a symmetrical thermogravimetric analysissystem built on the basis of a Cahn 1000 electrobalance. The electrochemical system allows themeasurement and regulation of P 02 within a few percent, and has the additional advantage that itcan be checked against systematic errors in an absolute way by means of the "Faraday's law test."The performance of the whole experimental setup is demonstrated by the resolution of a narrowhysteresis loop shown by P 02 as a function of composition in the Ups phase of theuranium--()xygen system.