CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES |
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Diffusion of aluminum in MgO: A thermodynamic approach study |
Zhang Bao-Hua (张宝华)a, Wu Xiao-Ping (吴小平)b |
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 |
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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.
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Received: 16 November 2012
Revised: 28 December 2012
Accepted manuscript online:
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PACS:
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66.30.J-
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(Diffusion of impurities ?)
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64.30.Jk
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(Equations of state of nonmetals)
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91.60.Dc
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(Plasticity, diffusion, and creep)
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Fund: 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. |
Corresponding Authors:
Zhang Bao-Hua
E-mail: zhangbh@cc.okayama-u.ac.jp
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Cite this article:
Zhang Bao-Hua (张宝华), Wu Xiao-Ping (吴小平) Diffusion of aluminum in MgO: A thermodynamic approach study 2013 Chin. Phys. B 22 056601
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