The analysis of purification and carbonization process in argon with use of nc-TiCx/C powder, obtained by sol–gel method, is presented. TG-DSC measurements were carried out under non-isothermal and isothermal
conditions. The samples were heated up in series to 1473, 1573, 1673, and 1773 K. For this series description of process kinetics
is presented. Four stages of the process have been distinguished. Kinetics was described using Coats-Redfern equation. The
kinetic parameters were determined for particular stages. Using obtained kinetic data, the analysis of the process was performed.
The α(T) and r(α,T) dependencies on heating rate and temperature were investigated. In order to obtain high carbonization degree and carbide
particles of small size, an appropriate temperature and time of process duration have to be determined. Appropriate carbonization
and particles size were obtained for series heated up to 1570 K. It has been demonstrated that the oxygen, present at trace
level in argon, can react with components of the system in certain range of temperature, influencing the quality of obtained
product. The particles have been depicted by TEM method, whereas characterization of structure and particles size was performed
by XRD method. MS method was used to determine evolved gaseous products.
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