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Effect of Ferroelectric Nanopowder on Electrical and Acoustical Properties of Cholesteric Liquid Crystal

Non-Metallic Material Science 2020年第1期2卷 12-16页

作者： Santosh Mani Madhavi Pradhan Archana Sharma SRChawade Sameer Hadkar Krishnakant Mishra Jyoti Amare pradip sarawade K.J.Somaiya College of Engineering Vidyavihar(E)Mumbai400077India Department of Physics University of MumbaiSantacruz(E)Mumbai400098India

The composite materials based on nanopowder dispersed liquid crystals are important both from fundamental research and device applications due to their unique properties such as improvement in various properties like electrical,optical,thermal,energy storage and spontaneous polarization *** proper selection of nanoparticle and its size which to be dispersed in particular liquid crystals is very important for a particular *** the present study,a ferroelectric nanopowder of Barium Titanate(BaTiO3)was dispersed in cholesteric liquid crystal and the same was confirmed by Fourier Transform Infrared(FTIR)*** various acoustical properties like ultrasonic velocity,density,Adiabatic Compressibility,Rao Constant,Wada Constant and Acoustic Impedance were investigated by ultrasonic interferometer at room temperature at fixed *** dielectric constant was determined by Precision Impedance *** addition to these investigations,particle size and surface area were also *** investigation shows enhanced in dielectric and acoustical properties which may be useful for device applications extensively in microelectronics,low cost-photovoltaic devices,and custom-shaped containers possibly applied as a coating.

关键词： Ferroelectric nanopowder Cholesteric liquid crystal Dielectric Acoustical Ultrasonic

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