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Phase diagrams of nanometer-sized particles in binary systems

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Abstract

A study on alloy phase formation in nanometer-sized particles by insitu transmission-electron microscopy revealed that the phase equilibrium of these particles is significantly different from that of the corresponding bulk materials. A theoretical study was conducted based on thermodynamics modified so that Gibbs free energies for bulk materials available in the CALPHAD database were modified by taking into consideration factors affecting the phase equilibrium of nanometer-sized alloy particles. The study proved useful to evaluate the results obtained from experiments.

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Authors and Affiliations

  1. the Research Center for Ultra-High Voltage Electron Microscopy, Osaka University, Japan

    Junggoo Lee & Hirotaro Mori

  2. the Division of Materials Science and Engineering, Korea University, Korea

    Joonho Lee

  3. the Department of Materials Process and Engineering, Osaka University, Japan

    Toshihiro Tanaka

  4. the VTT Technical Research Center of Finland, Finland

    Karri Penttilä

Authors
  1. Junggoo Lee
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  2. Hirotaro Mori
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  3. Joonho Lee
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  4. Toshihiro Tanaka
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  5. Karri Penttilä
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Additional information

For more information, contact Junggoo Lee, Research Center for Ultra-High Voltage Electron Microscopy, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan; +81-6-6879-7941; fax +81-6-6879-7942; e-mail; jg-lee@uhvem.osakau.ac.jp.

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Lee, J., Mori, H., Lee, J. et al. Phase diagrams of nanometer-sized particles in binary systems. JOM 57, 56–59 (2005). https://doi.org/10.1007/s11837-005-0235-6

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  • DOI: https://doi.org/10.1007/s11837-005-0235-6

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