A New Method for the Analysis of Non-Isothermal Thermo-Analytical Data from Solid State Reaction

• Main Authors: S., Maitra, A. K., Bandyopadhyay, N., Bandyopadhyay, J., Pramanik
• Format: Article
• Published: INDIAN CERAMIC SOC, CENTRAL GLASS & CERAMIC RES INST, KOLKATA, 700 032, INDIA 2009
• Subjects: TP Chemical technology
• Online Access: http://eprints.utp.edu.my/2339/1/SAMPLE_PAPER_PDF.pdf; http://apps.isiknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=7&SID=X212JDdPAc7358p5C3D&page=1&doc=1; http://eprints.utp.edu.my/2339/

The existing methods for the determination of kinetic parameters of solid state reactions from non-isothermal thermoanalytical data suffer from some limitations due to inexact solution of the Arrhenius temperature integral and non-consideration of the temperature dependence of pre-exponential factor. In the present paper a new method was developed for the evaluation of kinetic parameters of solid state reactions using Gauss's quardature rule with Radau integration with a computer programme. The method was applied to determine the kinetic parameters for the decomposition reactions of MgCO3 and CaCO3 from non-isothermal thermogravimetric study.