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Al熔体与非晶SiO_2的扩散反应动力学 被引量:1

Diffusion Kinetics of Reaction Between Aluminum Melts and Amorphous Silica
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摘要 利用SiO2玻璃尺寸大的特点,研究了Al与SiO2玻璃反应组织和反应动力学.实验发现,长时间反应可以得到Al/Al2O3复合组织,在Al熔体和Al/Al2O3复合组织间存在扩散过渡层.测定了扩散过渡层和Al/Al2O3复合层的生长动力学.分析了扩散过渡层的动力学规律.讨论了Si对扩散过渡层和复合层形成动力学的影响,发现Al/Al2O3复合层形成的抛物线动力学特征. The microstructures and kinetics of reaction between aluminum and amorphous silica are investigated by making use of advantages of silica glass' s larger dimension. Al/Al2O3 composite microstructures can be synthesized by longer time reaction and the diffusion transit layer is discovered between aluminum melts and the Al/Al2O3 composite layer. The growth kinetics of diffusion transit layer and Al/Al2O3 composite layer are also measured and discussed. The effect of silicon element on the diffusion transit layer and the composite layer' kinetics is discussed and of Al/Al2O3 composite layer is determined.
出处 《重庆大学学报(自然科学版)》 EI CAS CSCD 北大核心 2007年第4期72-75,共4页 Journal of Chongqing University
基金 重庆市应用基础研究项目(7940) 重庆大学骨干教师资助项目
关键词 SIO2玻璃 扩散反应 动力学 aluminum amorphous silica reaction diffusion kinetics parabola growth kinetics
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