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

Figen A., Yilmaz M., Piskin S.

Materials Characterization, vol.61, pp.640-647, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 61
  • Publication Date: 2010
  • Doi Number: 10.1016/j.matchar.2010.03.009
  • Journal Name: Materials Characterization
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.640-647
  • Keywords: Inderite, Characterization, Dehydration, Kinetics, Non-isothermal, Thermal analysis
  • Yıldız Technical University Affiliated: Yes

Abstract

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.