摘要：以硅灰石矿物粉末为对象，用自动玛瑙乳钵进行干式微粉碎，研究了微粉碎过程中的机械力化学效应，考察分析了硅灰石在微粉碎过程中粉体粒度（激光衍射法）、比表面积（ＢＥＴ吸附法）、结晶构造畸变（有效德拜瓦洛参数－Ｂｅｆ）的变化特征，阐述了硅灰石从三斜晶系向单斜晶系的多型转变过程。

关键词：硅灰石;微粉碎;机械力化学;晶体结构;

Abstract：The Mechanochemical effect and change of crystal structure in the superfine grinding process of wollastonite are investigated in this paper.The characteristic of change about particle size (laser diffraction analyzer) , specificsurface area (BET adsorotion metheod) strain of crystal structure (effective Debyewalles parameterBeff) for wollastonite in superfine grinding process is analyzed, and the polymorphic transition process from triclinic system into monoclinic system is explained.

Keyword：wollastonite;superfine grinding;mechanochemical effect;crystal structure;