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Studies on the kinetics of synthesis of TiC by calciothermic reduction of TiO2 in presence of carbon

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Abstract

Reaction kinetics of the formation of TiC by calciothermic reduction of TiO2 in presence of carbon have been investigated using thermal analysis (TG-DTA) of a powder mixture of TiO2, Ca, and C in argon atmosphere at different heating rates. Both the reaction initiation and the peak temperatures are found to increase with heating rates. The appearance of exothermic peaks in the DTA plots after Ca melting indicates the reduction of TiO2 by liquid calcium and formation of TiC by in-situ reaction of Ti with C. The apparent activation energy of the process has been found to be 170.8±0.5 kJ mol−1.

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Authors and Affiliations

  1. Materials Processing Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India

    D. V. Bavbande & J. M. Juneja

  2. Applied Chemistry Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India

    R. Mishra

Authors
  1. D. V. Bavbande
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  2. R. Mishra
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  3. J. M. Juneja
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Correspondence to J. M. Juneja.

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Bavbande, D.V., Mishra, R. & Juneja, J.M. Studies on the kinetics of synthesis of TiC by calciothermic reduction of TiO2 in presence of carbon. J Therm Anal Calorim 78, 775–780 (2004). https://doi.org/10.1007/s10973-005-0445-0

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  • DOI: https://doi.org/10.1007/s10973-005-0445-0

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