Research team (26)

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Refractoriness improvement of kaolinitic ceramic.

Project description :

Thermomechanical ceramics have been very used in recent years because of the many different applications. These high-performance materials are intended for applications in severe environments where the material must resist to the mechanical and thermal stresses due to temperature increasing, as well as corrosive agents. As a result, improving of the refractories performance has an important impact on industrial productivity, personnel safety and the environment. Refractories are structural materials, consumable, working at high temperatures, without any notable change in its chemical, mechanical and physical characteristics. The refractory material doesn’t react with surrounding materials and resisted to temperature variations and thermomechanical shocks. Therefore, the refractory choice is based on the stresses various of chemical, thermal and mechanical origin as well as technical and economic considerations by minimizing the time and costs. The strategic importance of these materials is considerable because they respond to a demand real in important economic sectors namely: the metallurgy industry, the environment, petrochemicals and energy. Refractory ceramics differ in their chemical nature. Those belonging to the silica-alumina system represent the largest group because of the varieties number in the refractories products. The main objective of our project is the study and characterization of a refractory material elaborate from a mixture of natural raw materials and the additions of used refractory bricks. These refractory materials will be used to make bricks to coat blast furnaces, refining furnaces and cement plants.