New Techniques for the Determination of Refractory Material Properties at High Temperatures

Friedrich Raether, Gerhard Seifert, Veronika Schmitt

Fraunhofer Zentrum Hochtemperatur-Leichtbau HTL, 95448 Bayreuth/Germany

Revision

Volume 7, Issue 3, Pages 77 - 84

Abstract

The expected service life of refractories is an important issue in almost any kind of high-temperature processes in industry. Fostered by the political regulations to improve energy efficiency and reduce CO2 emissions, research activities on refractories have been intensified recently. To enable reliable lifetime prognoses, theoretical modeling is as important as the availability of precise high-temperature data on the material behaviour against thermal shock and corrosive agents. In this work, two new thermo-optical measuring devices are introduced which provide extended capabilities for studies of thermal shock and thermal cycling behaviour of refractories and their degradation by corrosive gases or abrasive particle flow.

Keywords

refractory service life, refractory corrosion, thermo-optical measuring devices

References

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