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Ultrasonic Investigations in the Liquid Crystal p‐Cyanophenyl‐trans‐4‐Propylocyclohexane Carboxylate
Author(s) -
Venkatacharyulu P.,
Gupta A. V. Nagaraja,
Rao K. R. K.,
Rao J. V.
Publication year - 1992
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170270527
Subject(s) - liquid crystal , isotropy , adiabatic process , ultrasonic sensor , carboxylate , relaxation (psychology) , materials science , crystal (programming language) , chemistry , condensed matter physics , crystallography , thermodynamics , nuclear magnetic resonance , optics , physics , organic chemistry , psychology , social psychology , computer science , acoustics , programming language
The variation of ultrasonic velocity with temperature in the liquid crystal p‐cyanophenyl‐trans‐4‐propylcyclohexane carboxylate at four different fixed frequencies is studied. From the observed temperature variation of the ultrasonic velocities, relaxation parameters like adiabatic relaxation time, velocity at infinite frequency in the isotropic as well as in the nematic liquid crystalline phases are determined. The results are discussed.