Journal
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume 74, Issue 1, Pages 309-315Publisher
SPRINGER
DOI: 10.1023/A:1026310710529
Keywords
approximate formula; non-isothermal kinetic analysis; temperature integral; TG
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A new approximate formula for temperature integral is proposed. The linear dependence of [GRAPHICS] 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 theabove dependence, which can be put in the form [GRAPHICS] 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.
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