利用Matlab图像处理功能计算了钢中夹杂物SEM图像的边缘、二维和三维分形维数,并讨论了边缘分形维数与夹杂物颗粒微观凝聚机制和三维分形维数与其融入顶渣中动力学之间的关系.结果表明:边缘分形维数可定量地表征夹杂物边界轮廓线的曲折复杂程度；对非润湿夹杂物颗粒来说,其边缘分形维数越大,表明气泡易于在其表面生成,从而更加有力于夹杂物的碰撞凝聚长大；夹杂物颗粒的三维分形维数越小,更有利于夹杂物融入渣中而被去除；分形维数是一个影响不规则夹杂物颗粒碰撞、凝聚和去除的重要参数.
参考文献
| [1] | 李宏,温娟,张炯明,王新华,佐佐木康,日野光兀.应用DLA模型模拟钢中夹杂物集团凝聚[J].北京科技大学学报,2006(04):343-347. |
| [2] | 李宏,郭洛方,潘永红,佐佐木康,日野光兀.应用DLA模型对钢中夹杂物凝聚过程的三维模拟[J].过程工程学报,2009(z1):312-316. |
| [3] | 宁林新,李宏,张炯明,王万军,王新华,马瑞金.钢中夹杂物的分形维数[J].钢铁研究学报,2005(06):59-62. |
| [4] | Thill A.;Simon B.;Wiesner M.;Bottero JY.;Snidaro D.;Veerapaneni S. .Determination of structure of aggregates by confocal scanning laser microscopy[J].Journal of Colloid and Interface Science,1998(2):357-362. |
| [5] | Johnson Clifford P;LI Xiao-yan;Logan Bruce E et al.Settling Velocity of Fraetal Aggregates[J].Environmental Science and Technology,1996,30(06):1911. |
| [6] | Baron P A;Sorensen C M;Brockmann J E.Non-Spherical Particle Measurement:Shape Factors,Fractals,and Fibers[A].Hoboken:Wiley-Interscience Press,2001:507. |
| [7] | Nelson Ibaseta;Beatrice Biscans .Fractal dimension of fumed silica: Comparison of light scattering and electron microscope methods[J].Powder Technology: An International Journal on the Science and Technology of Wet and Dry Particulate Systems,2010(2):206-210. |
| [8] | Hirokazu Tozawa;Kato Y .Agglomeration and Floatation of Alumina Cluster in Molten Steel[J].Current Advances in Materials and Processes,1999,12(04):678. |
| [9] | Michel Cournil;Frederic Gruy;Pascal Gardin;Hubert Saint-Raymond .Modelling of solid particle aggregation dynamics in non-wetting liquid medium[J].Chemical Engineering and Processing,2006(7):586-597. |
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