中国物理B ›› 2013, Vol. 22 ›› Issue (5): 56601-056601.doi: 10.1088/1674-1056/22/5/056601

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Diffusion of aluminum in MgO: A thermodynamic approach study

张宝华a, 吴小平b   

  1. a Institute for Study of the Earth's Interior, Okayama University, Misasa, Tottori-ken 682-0193, Japan;
    b School of Earth and Space Science, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:2012-11-16 修回日期:2012-12-28 出版日期:2013-04-01 发布日期:2013-04-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 40874034), the National High Technology Research and Development Program of China (Grant No. 2012AA061403), and the COE-21 Program of the Institute for Study of the Earth's Interior, Okayama University, Japan.

Diffusion of aluminum in MgO: A thermodynamic approach study

Zhang Bao-Hua (张宝华)a, Wu Xiao-Ping (吴小平)b   

  1. a Institute for Study of the Earth's Interior, Okayama University, Misasa, Tottori-ken 682-0193, Japan;
    b School of Earth and Space Science, University of Science and Technology of China, Hefei 230026, China
  • Received:2012-11-16 Revised:2012-12-28 Online:2013-04-01 Published:2013-04-01
  • Contact: Zhang Bao-Hua E-mail:zhangbh@cc.okayama-u.ac.jp
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 40874034), the National High Technology Research and Development Program of China (Grant No. 2012AA061403), and the COE-21 Program of the Institute for Study of the Earth's Interior, Okayama University, Japan.

摘要: We have applied a thermodynamical model to calculate the diffusion coefficient of aluminum in MgO with the aid of bulk elastic properties. Our calculated diffusivities as a function of temperature and pressure are compared with the existing results derived from the experimental or theoretical investigations. We find that the present model provides a satisfactory estimation for the activation volume and the activation enthalpy.

关键词: MgO, diffusion, aluminum, cBΩ model

Abstract: We have applied a thermodynamical model to calculate the diffusion coefficient of aluminum in MgO with the aid of bulk elastic properties. Our calculated diffusivities as a function of temperature and pressure are compared with the existing results derived from the experimental or theoretical investigations. We find that the present model provides a satisfactory estimation for the activation volume and the activation enthalpy.

Key words: MgO, diffusion, aluminum, cBΩ model

中图分类号:  (Diffusion of impurities ?)

  • 66.30.J-
64.30.Jk (Equations of state of nonmetals) 91.60.Dc (Plasticity, diffusion, and creep)