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Journal of Thermal Analysis and Calorimetry

, Volume 74, Issue 1, pp 309–315 | Cite as

New Temperature Integral Approximate Formula for Non-isothermal Kinetic Analysis

  • T. Wanjun
  • L. Yuwen
  • Z. Hen
  • W. Zhiyong
  • W. Cunxin
Article

Abstract

A new approximate formula for temperature integral is proposed. The linear dependence of the new fomula on x has been established. Combining this linear dependence and integration-by-parts, new equation for the evaluation of kinetic parameters has been obtained from the above dependence. The validity of this equation has been tested with data from numerical calculating. And its deviation from the values calculated by Simpson's numerical integrating was discussed. Compared with several published approximate formulae, this new one is much superior to all other approximations and is the most suitable solution for the evaluation of kinetic parameters from TG experiments.

non-isothermal kinetic analysis temperature integral approximate formula TG 

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Copyright information

© Kluwer Academic Publisher/Akadémiai Kiadó 2003

Authors and Affiliations

  • T. Wanjun
    • 1
  • L. Yuwen
    • 1
  • Z. Hen
    • 1
  • W. Zhiyong
    • 1
  • W. Cunxin
    • 1
  1. 1.College of Chemistry and Molecular ScienceWuhan UniversityWuhanP. R. China

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