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  • 1 School of Engineering and Technology, China University of Geosciences, Beijing 100083, China
  • | 2 State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
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Abstract

The decomposition behavior of kaolin samples has been carried out by simultaneous TG–DTA experiments. New layer-structure formation during the calcination process was found, and metakaolin compound was detected between 600 and 900 °C. The thermal stability of kaolin samples was then identified by TG–DTA, and the results are confirmed by characterization of X-ray powder diffraction (XRD), N2 adsorption (Brunauer-Emmet-Teller model, BET), and scanning electron microscopy (SEM).

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