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ISSN Online: 2377-424X

International Heat Transfer Conference 4
August 31 - September 5, 1970, Paris-Versailles, France

ON THERMAL CONDUCTIVITY OF COMPOSITES

Get access (open in a dialog) DOI: 10.1615/IHTC4.1400
pages 1-11

Résumé

Thermal conductivity of composites, made of highly conductive metal fibers randomly distributed in low conductive matrices, is investigated experimentally as well as theoretically. Experimental results indicate that the most important parameters are the conductivity of the matrix, the fiber volume ratio, and the fiber cross-section. These results were compared with earlier theories. A stochastic model, developed in this study, shows that the thermal conductivity of such composites is controlled by probabilistic and not deterministic laws. Moreover, a specific formulation gives a thermal conductivity similar to that of stainless steels but a density only a quarter of that of the steels.