High-Temperature Oxidation and Corrosion of Engineering Ceramics

[+] Author and Article Information
K. G. Nickel

Eberhard-Karls-Universität Tübingen, Institut für Mineralogie, Petrologie, und Geochemie, D-7400 Tübingen, Federal Republic of Germany

Z. Fu, P. Quirmbach

Max-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaft, Pulvermetallurgisches Laboratorium, D-7000 Stuttgart 80, Federal Republic of Germany

J. Eng. Gas Turbines Power 115(1), 76-82 (Jan 01, 1993) (7 pages) doi:10.1115/1.2906689 History: Received February 24, 1992; Online April 24, 2008


The problems of high-temperature oxidation and corrosion of Si3 N4 and SiC are discussed. Other ceramics usually do not meet the requirements of structural applications at high temperatures. If the application has to meet very defined limits of size change, it is necessary to specify the exact material composition, as well as the atmosphere composition and physical environment to be able to specify the limits. This is in any case true for extremely reducing conditions or very high temperatures. Under oxidizing conditions, the region between ≈850 and 1100°C should be avoided when salty, sulfurous, and wet fuel conditions are expected. High temperature limits for long-time applications of Si3 N4 in oxidizing environments are between 1200 and 1400°C, corresponding to eutectic temperatures of the glass phase. The ultimate limit for long-time use of SiC is likely to be between 1700 and 1800°C, where bubble formation and spallation may become inevitable.

Copyright © 1993 by The American Society of Mechanical Engineers
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