The effect of heat transport within the sample on the shape of thermoanalytical curves

G. Pokol, Sándor Gál, Ernö Pungor

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Constant heating rate thermoanalytical curves were simulated for processes governed by a phase boundary reaction and the heat conduction inside the sample. The effects of thermal conductivity, the heat of the reaction, the sample size, etc., on the shape of the peak and on the kinetic parameters estimated without considering thermal resistance are described. Dimension analysis was applied to obtain quantitative expressions of: (a) the maximum difference between the temperature of the reacting interface and the program temperature, (b) the criteria of accurate estimation of kinetic constants without considering heat transport, on the basis of material and experimental parameters.

Original languageEnglish
Pages (from-to)313-331
Number of pages19
JournalThermochimica Acta
Volume105
Issue numberC
DOIs
Publication statusPublished - Sep 1 1986

Fingerprint

heat
kinetics
Phase boundaries
curves
thermal resistance
Heating rate
Kinetic parameters
Heat resistance
Heat conduction
conductive heat transfer
Thermal conductivity
thermal conductivity
Temperature
Kinetics
heating
temperature
Hot Temperature

ASJC Scopus subject areas

  • Chemistry (miscellaneous)
  • Physical and Theoretical Chemistry

Cite this

The effect of heat transport within the sample on the shape of thermoanalytical curves. / Pokol, G.; Gál, Sándor; Pungor, Ernö.

In: Thermochimica Acta, Vol. 105, No. C, 01.09.1986, p. 313-331.

Research output: Contribution to journalArticle

Pokol, G. ; Gál, Sándor ; Pungor, Ernö. / The effect of heat transport within the sample on the shape of thermoanalytical curves. In: Thermochimica Acta. 1986 ; Vol. 105, No. C. pp. 313-331.
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