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Kinetic study of the crystallization processes of some glass ceramics based on basalt, via thermal analysis

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Abstract

The paper presents the kinetic study of the crystallization processes which take place at the obtaining of some glass ceramics, starting from two basalt glasses with different oxide composition. The activation energies have been calculated using Kissinger's equation and verified with the Ozawa's equation. In this order, the DTA curves have been registered with different heating rates, between 4 and 20°C min-1. By X-ray diffraction it was established that the crystalline phase formed in the crystallization process represent a pyroxenic solid solution, Ca(Mg,Fe)SiO3.

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Authors and Affiliations

  1. Faculty of Industrial Chemistry and Environmental Engineering, 'Politehnica' University of Timişoara, 1, P-ţa Victoriei No. 2, 1900, Timişoara, Romania

    C. Păcurariu & I. Lazău

  2. Faculty of Mechanical Engineering, 'Politehnica' University of Timişoara, B-dul M. Viteazu No. 1, 1900, Timişoara, Romania

    M. Liţă

  3. Faculty of Pharmacy, University of Medicine and Pharmacy 'Victor Babeş', P-ţa E. Murgu No. 2, 1900, Timişoara, Romania

    D. Tiţa

  4. PROCEMA S. A, Calea źagului nr. 104, 1900, Timięoara, Romania

    G. Kovacs

Authors
  1. C. Păcurariu
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  2. M. Liţă
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  3. I. Lazău
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  4. D. Tiţa
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  5. G. Kovacs
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Păcurariu, C., Liţă, M., Lazău, I. et al. Kinetic study of the crystallization processes of some glass ceramics based on basalt, via thermal analysis. Journal of Thermal Analysis and Calorimetry 72, 811–821 (2003). https://doi.org/10.1023/A:1025010013618

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