Na+对制备Al4SiC4/Al4O4C复合耐火材料的影响

人工晶体学报, 2015, 44(4): 1127-1131.

Na+对制备Al4SiC4/Al4O4C复合耐火材料的影响

邓承继 ^1, , 余超 ^2, , 匡健磊 ^3, , 祝洪喜 ^4, , 员文杰 ^5, , 周诗民 ^6,

1.武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉,430081

2.武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉,430081

3.武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉,430081

4.武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉,430081

5.武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉,430081

6.武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉,430081

基金项目: 国家自然科学基金(51274156)

关键词： Al4SiC4/Al4O4C复合耐火材料 , Na+ , 固溶 , 显微结构

Effect of Na+ on the Preparation of Ai4SiC4/Al4O4C Composite Refractory

Keywords： Al4SiC4/Al4O4C composite refractory , Na+ , solid solution , microstructure

以焦宝石、活性炭和铝粉为原料,添加Na2CO3制备Al4SiC4/Al4O4C复合耐火材料.采用化学分析、XRD和SEM等测试技术,研究了Na+对材料物相组成和显微结构的影响.结果表明:添加Na2CO3加速了Al2O3和活性炭的反应,促进了Al4O4C的生成.未添加Na2CO3时生成的Al4SiC4晶粒表面光滑,添加Na2CO3后Al4SiC4晶粒粗糙、凹凸,缺陷明显增加.此外,未添加Na2CO3的试样中生成的Al4O4C呈短纤维状,添加Na2CO3后全部转变为细小颗粒.

参考文献

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材料期刊网

Na+对制备Al4SiC4/Al4O4C复合耐火材料的影响

Effect of Na+ on the Preparation of Ai4SiC4/Al4O4C Composite Refractory

参考文献