硅酸盐学报2017，Vol.45Issue(9)：1335-1339,5.DOI:10.14062/j.issn.0454-5648.2017.09.16
含铁氮化硅的氧化行为
Oxidation Behavior of Silicon Nitride Containing Iron
摘要
Abstract
The oxidation behavior of silicon nitride ceramics containing iron in air at 1300-1500 ℃ was investigated. The results indicate that the presence of iron in the ceramics causes a slight increase in the oxidation rate. The oxidation of Fe-Si3N4 obeys the parabolic oxidation law, with an activation energy of 285 kJ/mol. Based on the element mapping analysis, iron diffused to the surface during the oxidation process, causing a decrease in the oxidation resistance. However, the oxidation rate of Fe-Si3N4 is still appropriate for applications in air at high temperatures.关键词
氮化硅/氮化硅铁/氧化/活化能Key words
silicon nitride/ferrosilicon nitride/oxidation/activation energy引用本文复制引用
管甲锁,成来飞,王耀辉..含铁氮化硅的氧化行为[J].硅酸盐学报,2017,45(9):1335-1339,5.基金项目
国家自然科学基金重点项目(51632007)资助. （51632007）
