Thermal Conductivity Paper Database

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Recommended Papers for: J. A. de Saja

Total Papers Found: 9

Extinction coefficient of polyolefin foams

This article focused on determining the extinction coefficient of polyolefin foams. A combination of experimental and theoretical methods were used to accomplish this goal. Samples differed from each other in terms of thickness, chemical composition, colour, density, and structural characteristics. Fourier transform infrared spectroscopy was ...

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The transient plane source technique (TPS) to measure thermal conductivity and its potential as a tool to detect in-homogeneities in metal foams

The present study used the transient plane source (TPS) technique to measure the thermal conductivity of a series of AlSi7 metal foams prepared by the powder metallurgical route. The main difference between the different foam samples was their density, which led to a change in ...

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Thermal conductivity of metallic hollow sphere structures: An experimental, analytical and comparative study

A variety of metallic hollow sphere structures were prepared with different metals, values for diameter and shell thickness and their densities were predicted using analytical/empirical models. From these densities, admitted scaling laws are used to predict thermal conductivity. The predicted values for thermal conductivity ...

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Thermal conductivity of AZ91 magnesium integral foams measured by the Transient Plane Source method

Using the transient plane source (TPS) method, the thermal conductivities of a series of magnesium integral foams have been measured experimentally. The main factor contributing to the thermal conductivity of the magnesium foams is the bulk density. In addition to using the TPS technique, micro-computed ...

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Applicability of the transient plane source method to measure the thermal conductivity of low-density polyethylene foams

Using the transient plane source (TPS) method, the thermal conductivities of a series of crosslinked closed-cell polyethylene foams were measured. The experimental values obtained were compared to measurements made by a steady-state method (heat-flow meter). Through the use of the TPS technique, it was possible ...

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Thermal Conductivity of Cellular Metals Measured by the Transient Plane Source (TPS) Method

Through the use of the transient plane source method the researchers were able to measure the thermal conductivity of a collection of cellular metals as well as the in- homogeneities of the samples. The volume of the samples was varied and the density of these ...

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Measurement of the thermal diffusivity and specific heat capacity of polyethylene foams using the transient plane source technique

The authors obtained a collection of crosslinked closed cell polyethlyene foams from a commercial supplier and then characterized the thermal properties of these foams. The characterization involved the use of the TPS technique to measure thermal conductivity, thermal diffusivity and specific heat capacity. It was ...

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Density gradients in aluminium foams: characterisation by computed tomography and measurements of the effective thermal conductivity

Through the use of computed tomography and the TPS method, the authors of this article were able to calculate local effective thermal conductivities of aluminium foams synthesized through the powder metallurgical route. Computed tomography was first used in order to measure the density of a ...

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An experimental study on the thermal conductivity of aluminium foams by using the transient plane source method

A collection of AlSi7 foams (porosities 0.5 to 0.8) were analyzed using the TPS technique in order to determine thermal conductivity. Increased density was found to lead to increased thermal conductivity. The TPS technique was found to be sensitive to the in-homogeneities created from the foaming process; ...

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