ISSN Online: 2377-424X
International Heat Transfer Conference 4
ON THERMAL CONDUCTIVITY OF COMPOSITES
要約
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.