Properties Characterization of MgO-Cr₂O₃-ZrO₂ Brick Prepared by Vacuum Impregnation

Abstract:

MgO-Cr₂O₃-ZrO₂ bricks were prepared by impregnated MgO-Cr₂O₃ refractory into ZrOC1₂·8H₂O solution in vacuum condition. Then the properties of MgO-Cr₂O₃-ZrO₂ bricks were researched in this study. The results showed that the properties of the MgO-Cr₂O₃-ZrO₂ bricks, such as bulk density, cold crushing strength, pore distribution, are superior to those of the MgO-Cr₂O₃ refractory. The ZrO₂ introduced to MgO-Cr₂O₃-ZrO₂ bricks by vacuum impregnation method were distributed in reunion in the aggregate and matrix combining site and cracks and pores of the matrix of MgO-Cr₂O₃-ZrO₂ bricks, which can significantly refine internal stomatal aperture of the bricks.

• Periodical: Key Engineering Materials (Volume 726)
• Pages: 394-398
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.726.394
• Online since: January 2017
• Authors: Wei Bo Yang*, Chao Peng, Gui Qiang Li, Ying Zhuo Liu, Hui Meng Zhang, Cheng Xin Sui, Yu Deng
• Keywords: MgO-Cr₂O₃ Refractories, MgO-Cr₂O₃-ZrO₂ Bricks, Vacuum Impregnation, ZrOC1₂·8H₂O

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