Measurements of Thermal Conductivity of Aluminum Nanopowders by Photoacoustic Spectroscopy

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URI: http://hdl.handle.net/2042/14131
Title: Measurements of Thermal Conductivity of Aluminum Nanopowders by Photoacoustic Spectroscopy
Author: An, Vladimir; De Izarra, Charles
Abstract: This paper concerns the use of photoacoustic spectroscopy (PAS) as a powerful technique to estimate thermal properties of aluminum nanosized powders. Aluminum nanopowders are considered as effective constituents of energetic materials. Thermal conductivity is an important factor in ignition behavior of aluminum nanopowders. For this work, graphite was used as reference material. The experiments showed that nanosized aluminum revealed the same behavior as that of graphite at photoacoustic measurements (similar values of the signal amplitude at various frequencies). It allowed us to assume that both materials have the same thermal diffusivity length.
Publisher: EDAP Editions , Grenoble, France
Date: 2007

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