| Si_3N_4─SiC耐火材料的碱蚀动力学 |
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| 引用本文： | 徐桂英,厉英,杜鹤桂.Si_3N_4─SiC耐火材料的碱蚀动力学[J].东北大学学报(自然科学版),1996(6). |
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| 作者姓名： | 徐桂英 厉英 杜鹤桂 |
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| 作者单位： | 东北大学钢铁冶金系 |
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| 基金项目： | 国家“八五”科技攻关项目 |
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| 摘 要： | 对Ｓｉ３Ｎ４结合的ＳｉＣ的抗碱蚀机理进行了动力学实验研究．结果表明，其碱蚀过程受化学与扩散混合控制；碱蚀增重及残余强度与碱蚀时间呈１／２次幂函数规律变化，与温度分别呈线性和二次幂函数规律变化．而其碱蚀增重速率及残余强度变化速率均与时间呈－１／２次幂函数规律变化
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| 关 键 词： | Si3N4－SiC耐火材料，碱蚀，动力学 |
Alkaline Erosion Kinetics of Si 3N 4 Bonded SiC Refractory |
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| Xu Guiying,Li Ying,Du Hegui.Alkaline Erosion Kinetics of Si 3N 4 Bonded SiC Refractory[J].Journal of Northeastern University(Natural Science),1996(6). |
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| Authors: | Xu Guiying Li Ying Du Hegui |
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| Abstract: | Study on the alkali erosion mechanism of Si 3N 4 SiC refractory has been carried out. Results show that alkali erosion course is controlled by chemical rewtion and diffusion,and that increased weight of alkali erosion and remaining strength qpper the 12 power functional regularity with reaction time and the 2 power functional reguiarity with temperature;but the rate of increased weight and the rate of remaining strength appear the -12 power functional regularity with reaction time. |
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| Keywords: | refractory alkali erosion kinetics |
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