Effect of Mullite Homogenized Grogs on the Properties of Mullite-SiC Bricks

摘要

The new mullite-SiC bricks were prepared by mullite homogenized grogs to substituted the bauxite clinkers (Al_2O_3 content is 85% or 88%) as raw materials. In this paper, the physico-chemical properties and wear resistance of the new mullite-SiC bricks were studied by comparing with the ordinary mullite-SiC bricks produced by using bauxite clinkers as raw materials. The result shows that the new mullite-SiC bricks have low apparent porosity and bulk density, high compressive strength and refractoriness under load, excellent wear resistance. The mullite homogenized grogs can substitute the bauxite clinkers as materials to produce mullite-SiC bricks and improve the properties of the bricks.