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In situ measurement of high-temperature thermal diffusivity in a combustion-synthesized ceramic

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Abstract:

A simple method to calculate thermal diffusivity in situ after a combustion synthesis reaction is presented. The combustion reaction was analyzed via time-resolved X-ray diffraction analysis and infrared thermography. Thermal diffusivity was estimated and used to calculate temperature profiles based on temperature profiles one second earlier. For a sample of TiC formed from Ti and C, a value of 2.00×10-6±0.20×10-6 m2 s-1 was calculated for temperatures between 1000 and 1900 K. This method is rapid and can avoid some problems associated with furnace-based measurements of thermal diffusivity, such as recrystallization and destruction of non-equilibrium phases.

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Authors and Affiliations

  1. Laboratoire d'Ingénierie des Matériaux et des Hautes Pressions, 99 avenue J.-B. Clément, 93430 Villetaneuse, France, , , , , , FR

    D. Vrel

  2. Laboratoire de Métallurgie Physique, bâtiment SP2MI, BP 30179, boulevard M. et P. Curie, 86962 Futuroscope Cedex, France, , , , , , FR

    S. Dubois, E.M. Heian, N. Karnatak & M.-F. Beaufort

Authors
  1. D. Vrel
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  2. S. Dubois
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  3. E.M. Heian
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  4. N. Karnatak
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  5. M.-F. Beaufort
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Additional information

Received 29 November 2002 / Received in final form 19 March 2003 Published online 23 May 2003

RID="a"

ID="a"e-mail: vrel@limhp.univ-paris13.fr

RID="b"

ID="b"UPR 1311

RID="c"

ID="c"UMR 6630

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Vrel, D., Dubois, S., Heian, E. et al. In situ measurement of high-temperature thermal diffusivity in a combustion-synthesized ceramic. Eur. Phys. J. B 33, 31–39 (2003). https://doi.org/10.1140/epjb/e2003-00138-y

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  • DOI: https://doi.org/10.1140/epjb/e2003-00138-y

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