International Journal of Macro and Nano Physics, Vol. 1(2) 2016, pp. 1-7 *Corresponding author. Tel.: +919791493045 Email address: annamalai_140795@yahoo.co.in(V.Annamalai) Double blind peer review under responsibility of DJ Publications http://dx.doi.org/10.18831/djphys.org/2016021001 2456-2483© 2016 DJ Publications by Dedicated Juncture Researcher’s Association. This is an open acces s article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). 1 RESEARCH ARTICLE Poling Effect and Temperature on Electrical Behaviour of PZT-Polymer Composites with 0-3 Connectivity P Gowdhaman 1 , R Sakthi Sudar Saravanan 1 , * V Annamalai 1 , Haresh M Pandya 1 1 Department of Physics, Chikkanna Government Arts College, Tiruppur, Tamilnadu, India. Received- 27 February 2016, Revised- 16 April 2016, Accepted- 5 June 2016, Published- 20 July 2016 ABSTRACT An attempt has been made to prepare PZT-polymer composite using Poly (methyl methacrylate) and a mixed polymer (Polyvinylidene fluoride and Polyvinyl chloride) as polymer phase. Based on the properties of polymer phases, two different preparation techniques have been used for the composite preparation and a hot press method has been adopted for the sample preparation. The inhomogeneity of ceramic phase over the polymer matrix has been revealed from the surface morphological studies. Dielectric constant and dielectric loss of the composite is found to be increased with the increase in temperature irrespective of poled and unpoled samples. Temperature dependence of AC conductivity increases with rise in temperature. The dielectric and pyroelectric performance of PZT-PMMA composite lags behind the PZT-PVDF/PVC composite. Keywords: PZT-PVDF/PVC, PZT-PMMA, Piezo-composite, AC conductivity, Dielectric constant. 1. INTRODUCTION The piezoelectric ceramic-polymer composites are one of the versatile materials used for the sensor and accelerometer applications. The presence of piezoelectric behaviour in these composite materials makes them a novel material, which are under study for a broad range of applications [1–4]. Among numerous piezoelectric ceramic materials, a perovskite structured lead based ferroelectric ceramic, Lead Zirconate Titanate (PZT) has been a key material under study due to its excellent dielectric and piezoelectric properties at its Morphotropic Phase Boundary (MPB) [5, 6]. However piezoelectric ceramics have their own limitation which constrains their use as a single phase material for the applications where flexibility is desirable. Piezoelectric polymers are identified to be an alternative material to overcome limitations of raw ceramic phase, but it has low dielectric and piezoelectric properties [1, 4, 7, 8]. Hence ceramic-polymer phases are often combined together to form a biphasic composite material which is reliable for practical applications. Dispersion of ceramic particles into the polymer matrix have been identified to be a simple and advantageous method for the preparation of a biphasic solid composite. This type of combination has been represented as 0- 3 connectivity which was given by [9]. Composites with different PZT- polymer combinations have been attempted and their dielectric, piezoelectric and pyroelectric properties were mainly focused by many researchers around the globe [2]. Two different composites were prepared in this work by keeping PZT as ceramic phase and varying the polymer phase by fixing 0.5 as the volume fraction of PZT. Poly (methyl methacrylate) (PMMA) and a mixed polymer (Polyvinylidene fluoride (PVDF) and Polyvinyl chloride (PVC)) have been used as a polymer phase for the composite preparation. An attempt has been made to study some of the electrical properties of poled and unpoled piezo-composites and the obtained results were analyzed and reported in this work. 2. EXPERIMENTAL METHODS 2.1. Materials, methods and characterization The piezoelectric ceramic APC 855 (Navy Type VI) obtained from American piezo-ceramics and piezoelectric polymers