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Please use this identifier to cite or link to this item: http://dyuthi.cusat.ac.in/purl/1805

Title: Photoacoustic studies on thermal parameters of liquid crystal mixtures
Authors: Nampoori, V P N
Radhakrishnan, P
Girijavallabhan, C P
Sajan, D George
George, A K
Keywords: Photoacoustics
Thermal Diffusivity
Liquid Crystal Mixtures
Issue Date: 5-Jul-2007
Publisher: Smart Materials and Structures
Citation: International School of Photonics, Cochin University of Science and Technology
Abstract: Complete thermal characterization of liquid crystal mixtures in the smectic phase consisting of various relative volume fractions of cholesterol and 1-hexadecanol have been carried out using the photoacoustic technique. Thermal diffusivity values of these liquid crystal mixtures are evaluated using the open cell photoacoustic technique whereas the thermal effusivity value is measured using the conventional photoacoustic technique. From the measured values of these transient thermophysical parameters, the thermal conductivity and heat capacity of the sample under investigation are calculated. Analyses of the results show that all the thermophysical parameters depend strongly on the volume fraction of the constituents. Results are interpreted in terms of enhanced hydrogen bonding and the consequent enhancement in cohesive thermal energy transport with increasing volume fraction of 1-hexadecanol
URI: http://dyuthi.cusat.ac.in/purl/1805
Appears in Collections:Dr. V P N Nampoori

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