Improvement of FeO Corrosion Resistance by Addition of β－Sialion in Matrix of Corundum Castable  

作　　者：LIYawei CHENFangyu 

机构地区：[1]ResearchInstituteofCeramicsforHighTemperature,WuhanUniversityofScience＆Technology,Wuhan430081 [2]ResearchInstituteofIron＆Steel,WuhanIron＆Steel（Group）Corporation,Wuhan430080

出　　处：《China's Refractories》2001年第3期31-34,共4页中国耐火材料（英文版）

摘　　要：Silicon aluminum oxynitride (β-Si4Al2O2N6) powder was added into corundum castable and its FeO corrosion resistance was tested in crucible method.It was found that FeO corrosion resistance of sialon containing corundum castables was better than that of no sialon powder added ,The optimum content of the sialon powder in castables was higher than mass of the sialon powder in castables was higher than mass 15%.Moreover,O'-sialon phase,together with β-sialon phase occurred in corundum castables heated in coke bed at 1500℃,although β-sialon powder was initially admixed into the matrix of castables.The EPMA results showed these nitrogen-containing phases located in the matrix of castables were favorable to hinder the penetration of FeO melt at high temperature in comparison with pure corundum castable.However,the flowability of corundum castable became worse originated from the sialon powder added.

关 键 词：氧化铁 抗腐蚀能力 浇注块 硅铝氧氮聚合材料 刚玉 金刚砂 

分 类 号：TF065.12[冶金工程—冶金物理化学] TF065.11