无机材料学报

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球磨氧化铝晶粒尺寸与显微应变的关系

刘新宽1; 马明亮1; 席生岐1; 周敬恩1; 谢清云2   

  1. 1. 西安交通大学材料科学与工程学院 西安 710049; 2. 西安电瓷研究所 西安 710077
  • 收稿日期:1998-09-14 修回日期:1998-11-09 出版日期:1999-08-20 网络出版日期:1999-08-20

Correlation Between Microstrain and Crystallite Size in Alumina

LIU Xin-Kuan1, MA Ming-Liang1, XI Sheng-Qi1, ZHOU Jing-En1, XIE Qing-Yun 2   

  1. 1.School of Materials Science and Engineering; Xi an Jiaotong University Xi an 710049 China;2. Institute of Xi an Electric Ceramics Xi an 710077 China
  • Received:1998-09-14 Revised:1998-11-09 Published:1999-08-20 Online:1999-08-20

摘要: 研究了高能球磨氧化铝的晶粒尺寸和显微应变发现球磨后氧化铝的显微应变(ε) 与晶粒尺寸() 符合逆变关系, 即晶粒尺寸越小, 显微应变越大显微应变与晶粒尺寸的倒数成线性关系, 在ε~1/ 图上出现双斜率表明球磨不同阶段, 显微应变增加的机制不同

关键词: 高能球磨, 氧化铝, 晶粒尺寸, 显微应变

Abstract: The evolution of microstrain and crystallite size in Al2O3 subjected to high-energy ball milling was studied by X-ray diffraction
analysis. As expected, the ball milling produced a noticeable increase in microstrain and a decrease of the original crystallite size. A mathematical
linear correlation between microstrain and the reciprocal of crystallite size was obtained, and double-n phenomenon was observed in the ε~ 1/D relationship. The
mechanism of microstrain increase for different milling period, which could be reflected from variation of the slope in the ε~ 1/D relationship, was suggested.

Key words: high energy ball milling, alumina, microstrain, crystallite size

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