摘要
本文应用分形几何理论，研究了粉体的粒度分布特征，发现在双对数坐标下，许多材料粒径的重量累积百分含量与粒径之间呈直线关系，表明其粒度分布具有分形结构。分维可作为描述粉体位度分布特征的一个序参量，其大小反映了粉体颗粒的粗细程度和集中、不均匀特征，即粉体粒度分布的空间结构性。并在监控粉磨机械效率、估测颗粒级配等方面有重要意义。
In this paper, the granularity distribution characteristics of powder are studied from the fractal geometry. It is found that there is a linear relationship between the accumulative weight percentage content and the grain size in log-log plot for many materials, and it shows that the granularity distribution of powder has fractal structure. The fractal dimcnsion may be taken as the series-parameter, which deseribes the granularitg distribution characteristics of powder. and it has important significance in monitoring the efficiency of comminution and estimating the granularity distribution of fine particlesetc
出处
《材料科学与工程》
CSCD
1995年第3期30-34,13,共6页
Materials Science and Engineering
关键词
分维
粉体
粒度分布
粉磨
Fractal dimension, Powder, Granularity distribution, Comminution
