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The non-isothermal kinetics of cordierite formation in mechanically activated talc–kaolinite–alumina ceramics system

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Abstract

The non-isothermal kinetics of cordierite formation from both non-activated and mechanically activated kaolinite + talc + alumina ceramic system was studied by differential thermal analysis (DTA). The mixture of kaolinite, talc and alumina was activated mechanically in a planetary mill, while amorphisation in the kaolinite, talc and alumina structure was studied by X-ray diffraction analysis. The activation energies depending on the conversion for cordierite formation were calculated from the DTA curves by using the non-isothermal method of Coats and Redfern at heating rates of 5, 10, 15 and 20 °C min−1. The mechanical activation of the kaolinite, talc and alumina mixture resulted in the decrease in activation energy values for cordierite formation.

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Authors and Affiliations

  1. Metallurgy and Materials Engineering, Sakarya University, 54187, Sakarya, Turkey

    Süha Yürüyen, Nil Toplan, Kenan Yildiz & H. Özkan Toplan

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  1. Süha Yürüyen
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  2. Nil Toplan
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  3. Kenan Yildiz
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  4. H. Özkan Toplan
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Correspondence to H. Özkan Toplan.

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Yürüyen, S., Toplan, N., Yildiz, K. et al. The non-isothermal kinetics of cordierite formation in mechanically activated talc–kaolinite–alumina ceramics system. J Therm Anal Calorim 125, 803–808 (2016). https://doi.org/10.1007/s10973-016-5277-1

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  • DOI: https://doi.org/10.1007/s10973-016-5277-1

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