Microwave sintered sol–gel derived BaTiO3 and Ba0.95La0.05TiO3 ceramic samples for capacitor applications

Sol–gel derived BaTiO3 and Ba0.95La0.05TiO3 powders were calcined at 700°C for 40min and sintered at 1100°C for 1h in a microwave furnace to obtain single-phase perovskite ceramic samples. About 98% of the theoretical density was obtained in the sintered BT ceramic samples. Room temperature (RT) die...

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Bibliographic Details
Published in:Ceramics international 2016-07, Vol.42 (9), p.10587-10592
Main Authors: Sonia, Chandrasekhar, M., Kumar, P.
Format: Article
Language:English
Subjects:
BLT
Dielectric properties
Reactive sintering
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Summary:Sol–gel derived BaTiO3 and Ba0.95La0.05TiO3 powders were calcined at 700°C for 40min and sintered at 1100°C for 1h in a microwave furnace to obtain single-phase perovskite ceramic samples. About 98% of the theoretical density was obtained in the sintered BT ceramic samples. Room temperature (RT) dielectric constant (εr) and dielectric loss (tanδ) at 1kHz frequency of the BLT ceramic samples were found to be ~2220 and 0.005, respectively. High value of εr, low value of tanδ and negligible temperature coefficient of capacitance from RT to 60°C suggested the suitability of BLT ceramic samples for multi-layer capacitor applications.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2016.03.135