Affiliation:
1. Universitas Sebelas Maret
Abstract
Barium Titanate (BT) is one of the most intriguing ferroelectric materials widely exploited both for academic and technological utilization. The study aimed to investigate characteristics of BT ceramics Synthesized by co-precipitation (BT-C) and solid-state methods (BT-S) with variation of sintering temperatures. Here, the sintering temperatures are 900°C, 1000°C, 1100°C, and 1200°C for 4 h of each The characteristics are microstructure, morphology, and dielectric properties evaluated using X-Ray Diffractometer (XRD), Scanning Electron Microscopy (SEM), and Inductance-Capacitance-Resistance (LCR) meter, respectively. As results, the XRD patterns shows a pure perovskite single phase of BT was obtained by solid-state method at sintering temperature of 1000°C. While, the same result was obtained by co-precipitation at sintering temperature of 1100°C. The average crystallite size of BT-C and BT-S ceramics are in close values and getting larger with the higher sintering temperatures. Meanwhile, tetragonality of the BT-C tends to be larger as compared to the BT-S. The morphology results revealed big formed particles agglomeration (>5 μm) of the BT-C ceramics and the densities proportionally increased as the higher temperatures exhibited less porosity of ceramics. Meanwhile, the BT-S grains were visible and agglomerated in a much smaller size with the density values were different as the change of the sintering temperatures. The dielectric permittivity of the BT-C and BT-S ceramics were increased with higher sintering temperature. Further, the BT-C ceramics possessed higher permittivity than the BT-S due to high densities (less porosity) of ceramics. The highest permittivity of 1150 at 40 kHz was achieved by BT-C at 1200°C.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference25 articles.
1. I.S. Naji and H.A. Gatea, Impact of sintering temperature on structural and dielectric properties of Barium Strontium Titanate prepared by Sol-gel method, J. Ovonic Res. 14(2018) 467-474.
2. S. Filipovic, L. Andjelkovic, D. Jeremic, Structure and properties of nanocrystalline tetragonal BaTiO3 prepared by combustion solid state synthesis, Sci. Sinter. 52 (2000) 257-268.
3. X. Ji, C. Wang, T. Harumoto, Structure and electrical properties of BCZT ceramics derived from microwave-assisted sol-gel-hydrothermal synthesized powders, Sci. Rep. 10 (2020) 20352.
4. X. Zhang, G. Chen, C. Fu, Effects of sintering temperature and holding time on the microstructure and electric properties of Ba(Zr0.3Ti0.7)O3 ceramics, Process. Appl. Ceram. 12 (2018) 45-55.
5. A.A. Kholodkova, S.G. Ponomarev, A.D Smirnov, Ultrafine powder of barium titanate for production of lead-free ceramic piezomaterials, IOP Conf. Ser.: Mater. Sci. Eng. 447 (2018) 012074.
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献