Topic
Volume fraction
About: Volume fraction is a research topic. Over the lifetime, 16312 publications have been published within this topic receiving 374181 citations.
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TL;DR: In this paper, a spatially homogeneous rate theory was developed to describe the time rate of change of the radius of a spherical particle embedded in a configurationally random array of particles of like nature but differing sizes.
478 citations
TL;DR: In this article, the specific surface area of activated carbon nanofibers (ACNFs) activated at 700°C was the highest but mesopore volume fraction of that was lowest.
Abstract: Poly(acrylonitrile) solutions in dimethylformamide were electrospun to be webs consisting of 300 nm ultrafine fibers. The webs were oxidatively stabilized and activated by steam resulting in activated carbon nanofibers (ACNFs). The specific surface area of the ACNF activated at 700 °C was the highest but mesopore volume fraction of that was lowest. On the other hand, the ACNFs activated at 800 °C showed opposite trends to those activated at 700 °C. The high specific surface area, mainly due to the micropores, introduced maximum specific capacitance at low current density (173 F/g at 10 mA/g). The elevated volume fraction of mesopores gave maximum specific capacitance at high current density (120 F/g at 1000 mA/g). The behavior is explained on the basis of ion mobility in the pores.
474 citations
TL;DR: In this article, the dynamic and static mechanical properties of randomly oriented intimately mixed short banana/sisal hybrid fiber reinforced polyester composites were determined, and the experimental results confirmed the quantitative characterisation obtained from static and dynamic mechanical analysis.
471 citations
TL;DR: In this paper, thermal transport properties including thermal conductivity and viscosity of ZnO-EG-based nanofluids were measured, and the results showed that the thermal conductivities of these nanoflugs are independent of setting time from 20 to 360 min.
469 citations
TL;DR: In this article, an expression for calculating enhanced thermal conductivity of nanofluid has been derived from the general solution of heat conduction equation in spherical coordinates and the equivalent hard sphere fluid model representing the microstructure of particle/liquid mixtures.
461 citations