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升温氧化过程煤表面介观特征和分形参数研究
The fractal parameter study of the coal surface structure in mesoscopic scale
【摘要】 将原子力显微镜(AFM)用于煤表面结构研究,提出介观尺度下煤表面结构研究方法.得出基于分形理论和AFM观测结果计算分形维数D的方法.实验分析证明,煤表面有明显的分形特征,在煤样的升温氧化过程中,分形维数随温度的升高趋于增大.
【Abstract】 Atomic force microscope (AFM) is used in studying coal surface structure. A method for studying this structure is proposed in mesoscopic scale. Base on fractal theory and the observation result by AFM,the fractal dimension D is calculated. It is found that there is obvious fractal characteristic. During the calefactive oxidation process of coal,the value of fractal dimension increases when the oxidation temperature increases.
【关键词】 煤;
介观;
分形维数;
小岛法;
升温氧化;
【Key words】 coal; mesoscopic scale; fractal dimension; islet method; calefactive oxidation;
【Key words】 coal; mesoscopic scale; fractal dimension; islet method; calefactive oxidation;
【基金】 国家自然科学基金资助项目(50374034)
- 【文献出处】 深圳大学学报 ,Shenzhen University Journal , 编辑部邮箱 ,2006年04期
- 【分类号】TQ533
- 【被引频次】6
- 【下载频次】226