期刊
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
卷 30, 期 14, 页码 13509-13518出版社
SPRINGER
DOI: 10.1007/s10854-019-01718-x
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资金
- Institute for Research & Medical Consultations [2017-IRMC-S-3, 2018-IRMC-S-2]
- Deanship for Scientific Research of Imam Abdulrahman Bin Faisal University (IAU - Saudi Arabia) [2018-209-IRMC, 2017-576-IRMC]
BaTiO3/(WO3)(x) ceramics (where x = 0, 0.5, 1, 2 and 5 wt%) were prepared by solid state reaction. X-ray powder diffraction, scanning electron microscope, Fourier transform-infrared spectroscopy and ultraviolet-visible diffuse reflectance spectrophotometry were used to investigate the structure, morphology and optical properties, respectively. The electrical and dielectric properties were also performed for different synthesized ceramics. A pure phase was obtained for x = 0.5 wt% ceramic, nevertheless a secondary phase was detected for x >= 1 wt% ceramics. The grains size increases for x = 0.5 wt% ceramic and then reduces abruptly with further increasing WO3 content. The increase of grains size and the absence of impurities were all efficient to enhance the dielectric properties. A suitable WO3 content leads to obtain ceramics having high dielectric constant and low tangent loss, which is encouraging for radio frequencies and microwaves applications.
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