FRACTAL DIMENSION OF ALUMINA AGGREGATES GROWN IN 2 DIMENSIONS

被引：9

作者：

LAROSA, JL ^{[1
]}

CAWLEY, JD ^{[1
]}

机构：

[1] OHIO STATE UNIV,DEPT MAT SCI & ENGN,COLUMBUS,OH 43210

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1992年 / 75卷 / 07期

关键词：

ALUMINA; AGGREGATES; FRACTALS; GEOMETRY; SUSPENSION;

D O I：

10.1111/j.1151-2916.1992.tb07228.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The concepts of fractal geometry are applied to the analysis of 0.4-mu-m alumina constrained to agglomerate in two dimensions. Particles were trapped at the bottom surface of a drop of a dilute suspension, and the agglomeration process was directly observed, using an inverted optical microscope. Photographs were digitized and analyzed, using three distinct approaches. The results indicate that the agglomerates are fractal, having a dimension of approximately 1.5, which agrees well with the predictions of the diffusion-limited cluster-cluster aggregation model.

引用

页码：1981 / 1984

页数：4

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