滑石粉超细磨过程的机械化学变化

来源期刊：中南大学学报(自然科学版)1998年第5期

论文作者：杨华明 邱冠周

文章页码：27 - 29

关键词：搅拌磨;超细磨;滑石粉;机械化学;机理

Key words：stirred mill; ultrafine grinding; talc powder; mechanochemistry; mechanism

摘    要：研究了搅拌磨超细粉碎滑石粉过程中粉体表面性质、晶体结构、化学键和元素位移的变化．研究表明，滑石粉经超细磨后，晶体结构趋于无序化，硅、氧和镁原子的结合能降低，各晶面的衍射强度、官能团对应的红外光谱的波峰及衍射斑点也发生波动．用XPS，XRD，TEM和IR等技术探讨了发生机械化学变化的机理.

Abstract: The changes of specific properties,crystal structure,chemical bond and element displacement in ultrafine grinding of talc powder with stirred mill are studied in the paper.The results indicate that amorphism of crystal structure,reduction of binding energy in Si_2P ,O_1S and Mg_2P ,changes in diffraction intensity of planes,IR wavenumber and diffraction patterns occur during ultrafine grinding of talc powder.The mechanism of mechanochemical changes is also discussed with XPS,XRD,IR and TEM.