Please use this identifier to cite or link to this item: http://umt-ir.umt.edu.my:8080/handle/123456789/11345
Title: The study of bsrium titanate addition on microstraucture and electrical properties of zinc oxide based varistor ceramic
Authors: Siti Noradilah Senin
Keywords: Siti Noradilah Senin
LP 8 PPKK 2 2018
Issue Date: 2018
Publisher: Universiti Malaysia Terengganu
Abstract: In this research, the study of BaTi03 addition on the microstructure and electrical properties of ZnO based varistor ceramic have been studied. The ZnO is added with 3, 6, and 9 wt. % of BaTi03 by the solid-state method using planetary ball milling and sintered at 900, 1100, and l300 C for 45 minutes. The sample of un-doped ZnO is prepared for comparison. X-Ray Diffraction (XRD) spectra for the commercial ZnO and BaTiQ3 confirmed that the samples do not have any impurity. From the XRD pattern analysis, samples exhibited a primary and secondary phases of the compound and high crystallinity. Scanning Electron Microscope (SEM) equipped with Energy Dispersive X-Ray Spectroscopy (EDX) images show an improvement of the grains size and uniformity of the microstructure of ZnO as the increasing of the wt. % of the BaTi03 and sintering temperatures. Then, the functional group is observed by Fourier Transform Infrared (FTIR). The Current-Voltage (I-V) characteristic measurement, the value of non-linearity coefficient is in the range of 1.0-15.0. In conclusions, the evolution of surface morphology due to BaTiQ3 addition is observed in the ZnO based ceramic varistor and is correlated to their electrical characteristics.
URI: http://umt-ir.umt.edu.my:8080/xmlui/handle/123456789/11345
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