硅酸盐通报2011，Vol.30Issue(5)：1039-1043,5.
叶腊石干法研磨中微结构及物相变化研究
Study on the Microstructure Alteration and Phase Transformation of Pyrophyllite by Dry Grinding
摘要
Abstract
The microstructure alteration and phase transformation of pyrophyllite were investigated by field emission scanning electron microscopy ( FE-SEM) , high-resolution transmission electron microscopy (HR-TEM) coupled with energy dispersive X-ray microanalysis (EDX) techniques and X-ray diffraction ( XRD). The following results are obtained: ( 1 ) The mechanical treatment by grinding produces a decrease in the particle size of original pyrophyllite with increasing time. With the increase of grinding intensities, the powder appears re-aggregation due to the high surface energy of active particle; ( 2 ) The dry grinding leads to lattice structure changed, and it results in phase transformation. Moreover, the sequence of reactions from pyrophyllite, through the anhydride phase, eventually to quartz and amorphous alumina is found,and the above quartz comes from the natural pyrophyllite.关键词
叶腊石/微结构/扫描电镜/高分辨透射电镜Key words
pyrophyllite/ microstructure/ SEM/ HR-TEM分类
天文与地球科学引用本文复制引用
严俊,胡仙超,邵佳明,方伟,张俭,盛嘉伟..叶腊石干法研磨中微结构及物相变化研究[J].硅酸盐通报,2011,30(5):1039-1043,5.基金项目
浙江省科技厅重大主题专项(2007C111042) （2007C111042）
浙江省研究生教育创新基金(1004) （1004）
