| 分形在砂状氧化铝强度研究中的应用 |
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| 引用本文： | 谭军,陈启元,尹周澜,张平民,李洁.分形在砂状氧化铝强度研究中的应用[J].中南大学学报(自然科学版),2005,36(5):833-836. |
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| 作者姓名： | 谭军 陈启元 尹周澜 张平民 李洁 |
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| 作者单位： | 中南大学,化学化工学院,湖南,长沙,410083 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，国家科技攻关项目，中国科学院资助项目 |
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| 摘 要： | 应用分形理论研究了砂状氧化铝表面形貌和强度的关系. 采用扫描电镜分析了一系列种分、碳分氧化铝颗粒的形貌特征, 进行了分维数的计算和磨损指数的测定. 研究结果表明, 碳分氧化铝的磨损指数随分维数增大而增大;种分氧化铝磨损指数和分维数之间的关系必须结合形貌结构进行分析, 形貌结构类型相同的种分氧化铝的磨损指数随分维数增大而增大.
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| 关 键 词： | 分形 砂状氧化铝 显微结构 磨损指数 强度 |
| 文章编号： | 1672-7207(2005)05-0833-04 |
| 收稿时间： | 2004-12-15 |
| 修稿时间： | 2004年12月15 |
Application of fractal theory to studying strength of sandy alumina |
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| TAN Jun,CHEN Qi-yuan,YIN Zhou-lan,ZHANG Ping-min,LI Jie.Application of fractal theory to studying strength of sandy alumina[J].Journal of Central South University:Science and Technology,2005,36(5):833-836. |
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| Authors: | TAN Jun CHEN Qi-yuan YIN Zhou-lan ZHANG Ping-min LI Jie |
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| Institution: | School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China |
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| Abstract: | The fractal theory was introduced to study the relationship between sandy alumina morphology and strength.Morphological characterizations of a series of alumina from seeded and carbonization precipitation were described using scanning electron microscopy(SEM).Attrition indices and fractal dimensions were determined.The results show that the attrition index of alumina from carbonization precipitation increases with the increase of fractal dimension.The crystal structure should be considered during analyzing the relationship between fractal dimension and strength.The attrition index of alumina with the same structure increases with the increase of fractal dimension. |
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| Keywords: | fractal dimension sandy alumina microstructure attrition index strength |
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