The production of stainless-steel fibre reinforced MgO-C bricks was made possible by the choice of a particular fibre in terms of material shape and a comprehensive modification of the mixing- and pressing parameters. The fibres lead to an increase of strength, toughness and fracture energy. Despite the fact that the fibres might be liquid under process temperatures of a steel plant the fibres protect themselves by the formation of a dense ceramic layer on top of their surface during service that both, keeps the shape of the material and stops oxidation and corrosion. Tests in ladle and BOF impact areas delivered superior lifetimes in comparison to bricks without fibre reinforcement.
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