Laser-induced thermal characterization of nano Ag metal dispersed ceramic alumina matrix

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Laser-induced thermal characterization of nano Ag metal dispersed ceramic alumina matrix

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dc.contributor.author V P N Nampoori
dc.contributor.author Radhakrishnan, P
dc.contributor.author Girijavallabhan, C P
dc.contributor.author Sajan, D George
dc.contributor.author Aji, A Anapara
dc.contributor.author K G K Warrier
dc.date.accessioned 2010-07-13T09:24:05Z
dc.date.available 2010-07-13T09:24:05Z
dc.date.issued 2003
dc.identifier.citation International School of Photonics, Cochin University of Science and Technology en_US
dc.identifier.other Proceedings of SPIE Vol. 5118
dc.identifier.uri http://dyuthi.cusat.ac.in/purl/1787
dc.description.abstract In this paper, we report the measurements of thermal diffusivity of nano Ag metal dispersed ceramic alumina matrix sintered at different temperatures using laser induced non-destructive photoacoustic technique. Measurements of thermal diffusivity also have been carried out on specimens with various concentration of nano metal. Analysis of the data is done on the basis of one-dimensional model of Rosencwaig and Gersho. The present measurements on the thermal diffusivity of nano metal dispersed ceramic alumina shows that porosity has a great influence on the heat transport and the thermal diffusivity value. The present analysis also shows that the inclusion of nano metal into ceramic matrix increases its interconnectivity and hence the thermal diffusivity value. The present study on the samples sintered at different temperature shows that the porosity of the ceramics varies considerably with the change in sintering temperature. The results are interpreted in terms of phonon assisted heat transfer mechanism and the exclusion of pores with the increase in sintering temperature en_US
dc.language.iso en en_US
dc.publisher Proceedings of SPIE en_US
dc.subject Photoacoustics en_US
dc.subject sol-gel en_US
dc.subject ceramics en_US
dc.subject thermal properties en_US
dc.subject nano composite en_US
dc.title Laser-induced thermal characterization of nano Ag metal dispersed ceramic alumina matrix en_US
dc.type Working Paper en_US


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