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Oxygen Potential in Molten Tin and Gibbs Energy of Formation of SnO2 Employing an Oxygen Sensor

Published online by Cambridge University Press:  31 January 2011

Rajnish Kurchania  and
Girish M. Kale
Rajnish Kurchania
Affiliation:
School of Process, Environmental and Materials Engineering, Department of Mining and Mineral Engineering, University of Leeds, Leeds LS2 9JT, United Kingdom
Girish M. Kale*
Affiliation:
School of Process, Environmental and Materials Engineering, Department of Mining and Mineral Engineering, University of Leeds, Leeds LS2 9JT, United Kingdom
*
a)Address all correspondence to this author.
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Abstract

On-line monitoring of the dissolved impurities in molten metals is important for better process control during alloying and metal refining operations. Disposable-type oxygen sensors are commercially available and are used in the iron and steel industry worldwide. However, there is a need for developing low-cost, reliable, long-life oxygen sensors for continuous monitoring of dissolved oxygen in molten metals. In this paper we present the results of the physical and electrical characterization of the solid electrolyte material ZrO2 (8 mol%Y2O3). The experimental results of the application of long-life solid-state electrochemical sensors designed using yttria-stabilized zirconia solid electrolyte for the measurement of oxygen potential in molten tin between 823 to 1273 K and standard Gibbs energy of formation of SnO2 from its elements are also reported.

Type
Articles
Information
Journal of Materials Research , Volume 15 , Issue 7 , July 2000 , pp. 1576 - 1582
Copyright
Copyright © Materials Research Society 2000

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References

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