High Temperature Material Processes (An International Quarterly of High-Technology Plasma Processes) An International Journal

ISSN for PRINT: 1093-3611

For Online Access

Best Paper Award Selection - Editorial Board Site

2007, Volume11

Issue 4

161 pages

DOI: 10.1615/HighTempMatProc.v11.i4

Issue price - $168.00

Vladimir An
High Voltage Research Institute, Tomsk Polytechnic University, 2a Lenin Ave., Tomsk 634050, Russia

Charles de Izarra
LASEP: Laboratoire d'Analyse Spectroscopique et d'Energétique des Plasmas, UPRES-EA 3269 Faculté des Sciences, Site de Bourges, Université d'Orléans, rue Gaston Berger, BP 4043, 18028 Bourges Cedex France

Over the last years, photoacoustic spectroscopy (PA) has become a powerful technique to characterize materials. In this paper, the well-known photoacoustic effect (PE) is presented as an effective non destructive method to estimate thermal properties of aluminum nanosized powders prepared with a transient plasma process by wire electrical explosion (WEE). Aluminum nanopowders are very attractive to be used as constituents of energetic materials. Thermal properties, such as thermal conductivity, are important for the study of ignition behavior of aluminum nanopowders. For this work, graphite bars were 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.

DOI: 10.1615/HighTempMatProc.v11.i4.120 Download article, 601-609 pages

Article price - $35.00

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