Effect of Sintering Atmosphere on the Microstructure and Electrical Properties of Donor‐Doped Barium Strontium Calcium Titanate Pyroelectric Ceramics
Authors:
- 4 June 2011
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 94 (7) , 2003-2006
Abstract
Effect of sintering atmosphere on the microstructure and electrical properties of the doped BSCT ceramics was investigated. More oxidizing sintering atmosphere weakened the donor‐incorporation effect in the sample and improved the density, grain size, resistivity, and dielectric properties. Especially, when the sintering atmosphere changed from air to O 2 , the resistivity and maximum of ∂ε / ∂ T increased about four orders of magnitude and two times, respectively, while the tan δ at T C decreased about 60%. This was very suitable and important for pyroelectric materials working at the DB mode.Keywords
This publication has 12 references indexed in Scilit:
- Pyroelectricity: From Ancient Curiosity to Modern Imaging ToolPhysics Today, 2005
- Pyroelectric Arrays: Ceramics and Thin FilmsJournal of Electroceramics, 2004
- Dielectric and pyroelectric properties of barium strontium calcium titanate ceramicsJournal of the European Ceramic Society, 2003
- Ferroelectric ceramics and thin films for uncooled thermal imaging arrays2002
- (Ba, Sr)TiO3system under DC-bias field: I. Improvement on the thermostability of pyroelectric response by Zr-substitutionFerroelectrics, 1997
- Ferroelectric materials for thermal IR detectorsFerroelectrics, 1987
- Oxygen Partial Pressure and Grain Growth in Donor‐Doped BaTiO 3Journal of the American Ceramic Society, 1987
- Compensating Defects in Highly Donor‐Doped BaTiO 3Journal of the American Ceramic Society, 1986
- Pyroelectric ceramics in the lead zirconate-lead titanate-lead iron niobate systemFerroelectrics, 1981
- Pyroelectric coefficient direct measurement technique and application to a nsec response time detectorFerroelectrics, 1972