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DTA Investigation During High Gas Pressure Molybdenum Nitridization

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Abstract

Differential thermal analysis shows many interesting properties that allow for prompt finding the place (p,T) and characteristics (endothermic, exothermic) of a phase transition or chemical reaction. In application to reactive sintering under active gas atmosphere at high pressure despite of numerous technical problems encountered during DTA measurements we found its unique possibilities. That allows for quantitative estimation of nitrogen involved in reaction of phase transition from the hexagonal phase to the cubic phase of MoN, and vice versa, in high gas pressure condition. DTA high gas pressure measurement system has the maximum operate temperature 2000°Cat pressure 2 GPa.

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Authors and Affiliations

  1. High Pressure Research Centre, Polish Academy of Sciences, ul. Sokolowska 29/37, 01-142, Warsaw, Poland

    A. Morawski & T. Łada

  2. Faculty of Material Sciences and Ceramics, Department of Solid State Chemistry, University of Mining and Metallurgy (AGH), Al. Mickiewicza 30, 30-059, Cracow, Poland

    K. Przybylski

Authors
  1. A. Morawski
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  2. K. Przybylski
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  3. T. Łada
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Morawski, A., Przybylski, K. & Łada, T. DTA Investigation During High Gas Pressure Molybdenum Nitridization. Journal of Thermal Analysis and Calorimetry 68, 243–250 (2002). https://doi.org/10.1023/A:1014921702442

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  • DOI: https://doi.org/10.1023/A:1014921702442

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