It was found that the thermal conductivity of composite materials is enhanced by the simultaneous incorporation of dispersed pitch-based carbon fibers (PCFs) and graphene nanoplatelets (GNPs). This study investigated methods for optimizing thermal conductivity. A thermal conductivity analyzer was used to compare thermal conductivity of composites filled with PCF and/or GNP. Results show the values of thermal conductivity increased as the filler content increased, and a greater synergistic improvement ...
This article investigates the effects of improving thermal conductivity of polyvinylidene fluoride (PVDF) /expanded graphite (EG) composites using the ball milling method. PVDF is widely used in the field of thermal conductivity due to its superior mechanical properties, chemical resistance, and oxidative stability. Thermal conductivity of the composites was measured, using the transient plane source method. Results showed thermal and electrical conductivities of PVDF/GNSs composites improved due to larger ...
This article investigated new macro-cellular carbons, called carbon meringues, formed by whipping an aqueous solution of tannin until liquid foam is obtained. Carbon meringues were fully investigated, and thermal conductivity was analyzed using a transient plane source method. Thermal conductivity of carbon meringues was found to be slightly higher than that of tannin-based CVC foams of low density. Carbon meringues maintained higher mechanical strength in the same range of density....
Using a gelation-freezing method, diatomite-derived porous silica ceramics with high porosities up to 90% were fabricated. Diatomite particles contain large numbers of meso- and micropores, intrinsically reducing the thermal conductivity. In this study, thermal conductivity of the sintered specimens was measured. Results indicate that ceramics had a low thermal conductivity due to their very high porosity....
In this study, the effect of freeze casting method to fabricate thermal insulators is analyzed. Gelation freezing was done to create unique honeycomb-like microstructures with high porosity. A thermal analyzer was used to measure the thermal conductivity of the insulators with the transient plane source (TPS) method. Results showed that the insulators exhibited very low thermal conductivities....
