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

Veronika Schmitt, Friedrich Raether, Gerhard Seifert

Fraunhofer Zentrum Hochtemperatur-Leichtbau HTL, 95448 Bayreuth/Germany


Volume 7, Issue 3, Pages 77 - 84


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.


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


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