Thermal characterization of nanocrystalline porous CePO4 ceramics

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Thermal characterization of nanocrystalline porous CePO4 ceramics

Show simple item record Sajan, D George Rajesh, Komban Warrier, K G K Radhakrishnan, P Nampoori, V P N Vallabhan, C P G 2011-10-29T11:17:14Z 2011-10-29T11:17:14Z 2010-02
dc.identifier.issn 1478–6435
dc.identifier.other Philosophical Magazine Vol. 90, No. 6, 28 February 2010, 717–729
dc.description.abstract A laser-induced photoacoustic technique was employed to investigate thermal transport through nanocrystalline CePO4 samples prepared via the sol–gel route. Evaluation of thermal diffusivity was carried out using the one-dimensional model of Rosencwaig and Gersho for the reflection configuration of the photoacoustic method. Structural analyses of samples revealed that they are nanoporous in nature, possessing micron-sized grains. Analysis of results shows that thermal diffusivity value varies with sintering temperature. Results are explained in terms of the variation in porosity with sintering temperature and the effects of various scattering mechanisms on the propagation of phonons through the nanoporous ceramic matrix. Further analyses confirm that apart from porosity, grain boundary resistance and interface thermal resistance influence the effective value of thermal diffusivity of the samples under investigation. en_US
dc.description.sponsorship Regional Research Laboratory & Cochin University of Science and Technology en_US
dc.language.iso en en_US
dc.publisher Taylor & Francis en_US
dc.subject photoacoustics en_US
dc.subject nanocrystalline ceramics en_US
dc.subject sol–gel method en_US
dc.subject thermal diffusivity en_US
dc.title Thermal characterization of nanocrystalline porous CePO4 ceramics en_US
dc.type Working Paper en_US
dc.contributor.faculty Technology en_US
dc.identifier.url DOI: 10.1080/14786430903246312 en_US

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