Journal
FERROELECTRICS
Volume 492, Issue 1, Pages 10-16Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00150193.2015.1071594
Keywords
BaTiO3; SiO2-doped; Nanopowders; Dielectric properties
Funding
- National Natural Science Foundation of China [51372144]
- New Century Excellent Talents Program of Chinese Education Ministry [NCET-11-1042]
- Key Program of Innovative Research Team of Shaanxi Province [2014KCT-06]
- International Science and Technology Cooperation Project Funding of Shaanxi Province [2012KW-06]
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(1-x)BaTiO3-xSiO(2) (x = 0, 0.2, 0.4, 0.6, 0.8 and 1.0 mol%) ceramics were prepared by microwave sintering method, which nanopowders of BaTiO3 and SiO2 were successfully synthetized by conventional hydrothermal method and Stober method, respectively. The effect of SiO2 content on microstructure and dielectric properties was investigated. X-ray diffraction result suggested that tetragonality (c/a) of the samples increased with increasing content of SiO2. It was found that there existed an increase in density and grain size of the samples for x0.4, which was mainly attributed to the presence of liquid phase during sintering process. BaTiO3 ceramics containing such amount of SiO2 also showed improved dielectric properties.
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