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A Study of Temperature-modulated Differential Scanning Calorimetry with High-resolution Infrared Thermography

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Abstract

Temperature gradients within the sample and furnace in temperature-modulated differential scanning calorimetry (TMDSC) are studied for a power-compensation calorimeter of the Perkin Elmer type. The temperature measurements were made with a high-speed, high-resolution infrared camera. Differences between programmed and actual temperature amplitudes are determined as a function of sample thickness for a sawtooth modulation with up to 48 K min−1 heating and cooling rates. Phase angles have been established, and the effect of open and sealed sample pans has been analyzed. A simple one-dimensional description of the observed effects is made and a three-dimensional one is suggested based on a model available in the literature.

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Authors and Affiliations

  1. Department of Chemistry, University of Tennessee, Knoxville, TN, 37996-1600

    R. Androsch, M. Pyda & B. Wunderlich

  2. Chemical and Analytical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, USA

    R. Androsch, M. Pyda & B. Wunderlich

  3. Oak Ridge National Laboratory, High Temperature Materials Laboratory, Oak Ridge, TN, USA

    H. Wang

Authors
  1. R. Androsch
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  2. M. Pyda
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  3. H. Wang
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  4. B. Wunderlich
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Androsch, R., Pyda, M., Wang, H. et al. A Study of Temperature-modulated Differential Scanning Calorimetry with High-resolution Infrared Thermography. Journal of Thermal Analysis and Calorimetry 61, 661–679 (2000). https://doi.org/10.1023/A:1010158621847

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  • DOI: https://doi.org/10.1023/A:1010158621847

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