Structural characterization and dehydration kinetics of KIrka inderite mineral: Application of non-isothermal models

Figen A., Yilmaz M., Piskin S.

Materials Characterization, cilt.61, ss.640-647, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 61
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.matchar.2010.03.009
  • Dergi Adı: Materials Characterization
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.640-647
  • Anahtar Kelimeler: Inderite, Characterization, Dehydration, Kinetics, Non-isothermal, Thermal analysis
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Coats-Redfern, Arrhenius, Ozawa, Kissinger, and Doyle non-isothermal kinetic models were used to calculate the dynamic kinetic parameters for dehydration reaction of Mg-borate mineral, inderite (Kirka - Turkey) based on thermogravimetric analysis, derivative thermogravimetric analysis and differential thermal analysis. Dehydration experiments were carried out at different heating rates of 2, 5, 10, 15, and 20 degrees C/min in a pure nitrogen atmosphere. Structural and morphological properties have been characterized by X-Ray diffraction, Fourier transform-infrared spectroscopy, Scanning electron microscopy-energy dispersive spectroscopy, and Inductively coupled plasma-optical emission spectroscopy techniques. (C) 2010 Elsevier Inc. All rights reserved.