Article ID Journal Published Year Pages File Type
7992640 Journal of Alloys and Compounds 2018 18 Pages PDF
Abstract
The powder samples of Na0.5Bi0.5TiO3- Ba0.7-xLaxSr0.3Sn0.1Ti0.9-0.25xO3 (NBT-BLSST) have been prepared successfully by a wet solid-phase method. The effects of La-doping on morphology, temperature stability and dielectric properties of NBT-BLSST ceramic samples have been investigated in detail. The XRD results show that the composites possess tetragonal perovskite phase structure. The dense phase morphology of NBT-BLSST is observed by scanning electron microscopy. The dielectric constant of ceramic samples can reach 4618 while the La doping is 0.8 mol%. The dielectric loss of capacitance is below 0.097. The temperature coefficient of capacitance varies from −15.02% to 16.13% in the temperature range between −55 °C and 200 °C. The temperature characteristic of capacitance is very close to EIA X9R specifications.
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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