Ren Zhongj ing，Jia Huiyou 

（Shandong Institute of Building Materials Jinan，250022；Qingdao Graphite Stock Company）

Abstract

The particle shape and parameter distribution of superfine powder of graphite are researched，using the analysis results of particle size measured by laser diffraction method and sedimentation method．T he distribution curve of long／diameter ratio varying with the particle size of the powder product．The analysis results of the curve can provide the useful information concerning the mechanism of particle preparation．

Keywords：graphite；particle shape；particle size analysis；shape parameter distribution

DOI：10.13732/j.issn.1008-5548.1999.01.005