无机材料学报

• 研究论文 • 上一篇    下一篇

机械球磨下石墨结构的畸变

陈小华1,2; 成奋强1; 王健雄1; 谢中1; 彭景翠1; 吴国涛2   

  1. 1. 湖南大学材料科学与工程学院, 长沙 410082; 2. 浙江大学物理系, 杭州 310027
  • 收稿日期:2001-04-12 修回日期:2001-06-17 出版日期:2002-05-20 网络出版日期:2002-05-20

Distortion of Graphite Structure under Ball Milling

CHEN Xiao-Hua1,2, CHENG Fen-Qiang1; WANG Jiang-Xiong1; XIE Zhong1; PENG Jing-Cui1; WU Guo-Tao2   

  1. 1. College of Materials Science and Engineering; Hunan University; Chaugsha 410082; China; 2. Department of Physics; Zhejiang University; Hangzhou 310027; China
  • Received:2001-04-12 Revised:2001-06-17 Published:2002-05-20 Online:2002-05-20

摘要: 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.

关键词: 石墨, 球磨, 纳米结构, 多孔结构

Abstract: 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.

Key words: graphite, ball milling, distortion, nanostructures, mesoporous structure

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