Because of high operating temperatures, advanced high-performance gas turbines will require the use of new types of material. Included among these materials will be dispersed ceramic composites capable of withstanding high temperatures and providing the required strength and wear characteristics. Presented here is a review of several analytical methods by which the effective thermal conductivity of these materials can be determined. In addition, the description and results of an experimental investigation designed to measure the effective thermal conductivity of four of these materials, tungsten carbide–cobalt, tungsten–copper, silicon nitride, and titanium diboride, are presented. Measurements were made over a temperature range of 300 K to 900 K in order to determine the mean effective thermal conductivity and the temperature dependence of this conductivity. The results of the experimental investigation are compared to the values obtained from several of the analytical methods presented and also with other data available in the literature.
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On the Thermal Conductivity of Dispersed Ceramics
G. P. Peterson,
G. P. Peterson
Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843
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L. S. Fletcher
L. S. Fletcher
Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843
Search for other works by this author on:
G. P. Peterson
Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843
L. S. Fletcher
Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843
J. Heat Transfer. Nov 1989, 111(4): 824-829 (6 pages)
Published Online: November 1, 1989
Article history
Received:
June 23, 1988
Online:
October 20, 2009
Citation
Peterson, G. P., and Fletcher, L. S. (November 1, 1989). "On the Thermal Conductivity of Dispersed Ceramics." ASME. J. Heat Transfer. November 1989; 111(4): 824–829. https://doi.org/10.1115/1.3250792
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