X-ray Diffraction Study of Crystalline Barium Titanate Ceramics

被引:21
作者
Zali, Nurazila Mat [1 ]
Mahmood, Che Seman [1 ]
Mohamad, Siti Mariam [1 ]
Foo, Choo Thye [1 ]
Murshidi, Julie Adrianny [1 ]
机构
[1] Agensi Nuklear Malaysia, Bangi 43000, Kajang Selangor, Malaysia
来源
ADVANCING NUCLEAR RESEARCH AND ENERGY DEVELOPMENT | 2014年 / 1584卷
关键词
BaTiO3; Ceramics; X-ray Diffraction; Calcination Temperature; Crystallite Size; Tetragonality; HYDROTHERMAL SYNTHESIS; BATIO3; TEMPERATURE; RESISTIVITY; PRECURSOR;
D O I
10.1063/1.4866124
中图分类号
O59 [应用物理学];
学科分类号
摘要
In this study, BaTiO3 ceramics have been prepared via solid-state reaction method. The powders were calcined for 2 hours at different temperatures ranging from 600 degrees C to 1200 degrees C. Using X-ray diffraction with a Rietveld analysis, the phase formation and crystal structure of the BaTiO3 powders were studied. Change in crystallite size and tetragonality as a function of calcination temperature were also discussed. It has been found that the formation of pure perovskite phase of BaTiO3 began at calcination condition of 1000 degrees C for 2 hours. The crystal structure of BaTiO3 formed is in the tetragonal structure. The second phases of BaCO3 and TiO2 existed with calcination temperature below 1000 degrees C. Purity, crystallite size and tetragonality of BaTiO3 powders were found to increase with increasing calcination temperature.
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页码:160 / 163
页数:4
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