摘要
研究了加入MgO细粉对不烧Al_2O_3-Si C-C材料抗氧化性的影响,结果表明,加入MgO后Al_2O_3-Si C-C材料的抗氧化性明显下降,其原因是Mg O与材料中的Al_2O_3、SiO_2发生反应,破坏了莫来石致密层,使材料由原来的保护性氧化变为连续性氧化,导致材料的抗氧化性下降.
In this paper,the effects of MgO addition on oxidation resistance of Al2O3-SiC-C material have been studied. The results show that MgO addition to Al2O3-SiC-C can lead to oxidation resistance decrease. The reason is that chemical reaction between MgO and Al2O3/SiO2 which destroied the compact lay of nulite,resulting in the change from protective oxidation to the continuous oxidation. Consequently,the property of oxdation resistance is decreased.
作者
殷园园
徐恩霞
王秀莉
杨东杰
Yin Yuanyuan Xu Enxia Wang Xiuli Yang Dongjie(High ＆ New Technology Research Center of Henan Academy of Sciences,Zhengzhou 450002, China School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China Henan Academy of Sciences , Zhengzhou 450002, China)
出处
《河南科学》
2016年第10期1650-1656,共7页
Henan Science
基金
河南省基础与前沿技术研究项目(152300410024)
