对石墨进行机械球磨处理,并用Ｘ射线、拉曼散射和高分辩电子显微镜对其结构进行了研究．经过１５０ｈ球磨后,石墨原有的晶体结构被破坏．引入多种缺陷的同时,石墨层发生了剥离和卷曲,形成了多边形粒子和纳米弓形等具有高度弯曲石墨面的纳米结构．经过２５０ｈ球磨后,石墨层状结构完全断裂和破坏;形成了由纳米级的基本结构单元(ＢＳＵ)组成的多孔碳．经过３０００℃热处理后,这种多孔碳并不能恢复成石墨组织结构．
Well-crystalline graphite was treated by high-energy ball milling processing for different milling time, and the samples were examined by X-ray diffraction, Raman scattering and high
resolution transmission electron microscopy. After ball-milling for 150h the structure of the pristine well-crystalline graphite was damaged. Besides a great many of defects were
induced, the graphite layers were exfoliated and crumpled, leading to formation of nanostructures consisting of polyhedral particles and nanoarches. After ball-milling for 250h the aromatic
layers were completely broken and destroyed, and a microporous carbon was formed by the strongly misoriented Basic Structure Units(BSU). After heat treatment at 3000℃, the graphite
organization was not recovered.
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