Preparation Of Potassium Niobate/Barium Titanate Nano-Composite Ceramics With A Wide Barium Titanate Particle Size Distribution And Their Dielectric Properties
KEY ENGINEERING MATERIALS(2014)
摘要
Denser, solvothermally synthesized KNbO3 (KN) / BaTiO3 (BT) composites with heteroepitaxial interfaces were prepared using the barium titanate powder with a wide particle size distribution. The relative density was 68 - 80 %, which was larger than that of the composites prepared using the barium titanate powder with a narrow particle size distribution. The dielectric constant was 300 450 and it was maximized at the KN/BT molar ratio of 0.5. The origin was discussed with the microstructure and crystal structure.
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关键词
barium titanate, potassium niobate, solvothermal synthesis
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