Microwave sintered sol–gel derived BaTiO3 and Ba0.95La0.05TiO3 ceramic samples for capacitor applications. Issue 9 (July 2016)

• Record Type: Journal Article
• Authors: Sonia, ; Chandrasekhar, M.; Kumar, P.
• Is Part Of: Ceramics international. Volume 42:Issue 9(2016)
• Page Start: 10587
• Page End: 10592
• Publication Date: 2016-07
• Subjects: BT -- BLT -- MW -- Reactive sintering -- Dielectric properties; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2016.03.135
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Sol–gel derived BaTiO3 and Ba0.95 La0.05 TiO3 powders were calcined at 700 °C for 40 min and sintered at 1100 °C for 1 h 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 ( ε r ) and dielectric loss (tan δ ) at 1 kHz frequency of the BLT ceramic samples were found to be ~2220 and 0.005, respectively. High value of ε r, low value of tan δ and negligible temperature coefficient of capacitance from RT to 60 °C suggested the suitability of BLT ceramic samples for multi-layer capacitor applications.