Temperature changes within samples in heat conduction calorimeters

Research output: Contribution to journalArticlepeer-review

8 Citations (SciVal)

Abstract

So-called isothermal calorimeters are often built on the heat conduction principle. This may sound as a contradiction, as heat conduction is a result of non-isothermal conditions, but most measurements with microcalorimeters and other such instruments are essentially isothermal as the temperature differences within the instruments are in the order of 10 mK. This paper presents simple methods to estimate the temperature changes within a sample in a heat conduction calorimeter during a measurement. It also shows that the determination of activation energy is normally not disturbed by these small temperature changes. In addition to the heat production rate in the sample, the thermal properties of the sample and the calorimeter are needed as input to the calculations.
Original languageEnglish
Pages (from-to)121-127
JournalThermochimica Acta
Volume366
Issue number2
DOIs
Publication statusPublished - 2000

Subject classification (UKÄ)

  • Materials Engineering

Fingerprint

Dive into the research topics of 'Temperature changes within samples in heat conduction calorimeters'. Together they form a unique fingerprint.

Cite this