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Kaolinite-mullite reaction series: a TEM study

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Abstract

The kaolinite-mullite reaction series in single crystal kaolinite has been characterized by transmission electron microscopy. The exotherm observed at 980° C is attributed to the formation of a spinel phase. Mullite crystallites have also been observed with the spinel phase and both phases have a composition near that of 3∶2 mullite. Subsequent heat treatment leads to the growth of mullite crystallites on the original kaolinite plates with the c-axis perpendicular to the plate.

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Authors and Affiliations

  1. Lawrence Berkeley Laboratory, National Center for Electron Microscopy, MCSD, 94709, Berkeley, CA, USA

    K. Srikrishna & G. Thomas

  2. Department of Material Science and Mineral Engineering, University of California, 94709, Berkeley, CA, USA

    K. Srikrishna & G. Thomas

  3. Institute de Ceramica y Vidrio, CSIC, Arganda Del Rey, Madrid, Spain

    R. Martinez, M. P. Corral, S. De Aza & J. S. Moya

Authors
  1. K. Srikrishna
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  2. G. Thomas
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  3. R. Martinez
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  4. M. P. Corral
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  5. S. De Aza
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  6. J. S. Moya
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Srikrishna, K., Thomas, G., Martinez, R. et al. Kaolinite-mullite reaction series: a TEM study. J Mater Sci 25, 607–612 (1990). https://doi.org/10.1007/BF00714083

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  • DOI: https://doi.org/10.1007/BF00714083

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