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探讨了β-Sialon/SiC复合材料在冰晶石熔液中的腐蚀动力学规律、腐蚀机理及材料密度和碳化硅含量对其抗蚀性能的影响.研究发现,由于该复合材料中的β-Sialon相与冰晶石反应生成粘度较大的NaAlSiO_4熔体能有效地阻止基体材料与冰晶石间的继续反应,抑制了腐蚀过程,使得β-Sialon/SiC复合材料作为铝电解槽内衬侧壁的候选材料成为可能.
The corrosion kinetics of β-Sialon / SiC composite in molten cryolite, the corrosion mechanism, the influence of material density and silicon carbide content on the corrosion resistance of the cryolite were investigated. It is found that the reaction of β-Sialon phase with cryolite to form a highly viscous NaAlSiO 4 melt can effectively prevent the continuous reaction between the matrix material and the cryolite and inhibit the corrosion process, so that β-Sialon / SiC Composite materials as a candidate for lining the side walls of aluminum cells become possible.