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Recommended Papers for: graphite

Total Papers Found: 64

Measurement of thermal conductivity with the needle probe

This paper explains an addition to a larger NPL project with the purpose to validate the use of the transient contact-probes for measurement of the thermal conductivity of soft solids such as foods, powders, and biological materials. Transient line source methods are used in this paper to accurately measure the thermal conductivities of a large variety of materials. More attention is paid ...

Author(s): , ,

Thermal optimisation of metal hydride reactors for thermal energy storage applications

Metal hydrides (MHs) have been considered as thermal energy storage (TES) materials for concentrated solar thermal applications. In this study, a TES system based on MgH2 was designed, constructed and optimized. The thermal conductivity of the MgH2/TiB2/ENG powder was measured using the transient plane source technique. It was found that the thermal conductivity of a MgH2/TiB2/ENG pellet pressed at 223 MPa for 5 minutes and measured in the ...

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Effect of solid-state shear milling on the physicochemical properties of thermally conductive low-temperature expandable graphite/low-density polyethylene composites

To improve the thermal conductivity of polymeric matrixes, conducting fillers were added to polymers, specifically graphite, having good thermal conductivity and dispersibility. Exfoliated graphite (EG) and graphite nanoplatelets (GNP) are excellent alternatives to metal and carbon as conductive polymer composites, through solution mixing and melt blending techniques. Thermal conductivity of composites was measured by a thermal analyzer, using the transient plane source (TPS) method. Solid-state shear milling treated composites showed ...

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Sucrose-based carbon foams with enhanced thermal conductivity

Carbon foams are novelty materials that have a wide range of applications such as radiators, thermal protection, and fire-resistant cores. The main carbon sources of carbon foams are sucrose, coal, coal tar pitch, and petroleum pitch, however the foams that use sucrose as their primary source have low thermal conductivity. This paper examined the thermal properties of carbon foams derived from sucrose but used graphite fillers to improve thermal conductivity. ...

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Thermal performance enhancement of palmitic-stearic acid by adding graphene nanoplatelets and expanded graphite for thermal energy storage: A comparative study

The purpose of this study was to improve the wettability of silicon carbide (SiC) nanowires, in order for them to be used as thermoconductive fluids. Multiple experiments were conducted by exposing the SiC nanowires to hydrofluoric acid, tetraethyl orthosillicate, polyvinylpyrolidone and sodium hydroxide. Various tests, including x-ray diffraction, Fourier transformation-infrared, x-ray photoelectron spectroscopy, thermogravimetric analysis, scanning electron microscopy and transmission electron microscopy, were performed on these various materials to identify ...

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