کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1461684 | 989621 | 2013 | 6 صفحه PDF | دانلود رایگان |
(1−x)(Bi0.4871Na0.4871La0.0172TiO3)−x(BaZr0.05Ti0.95O3) ceramics (abbreviated (1−x)BNLT−xBZT) where 0.1≤x≤0.3 were fabricated by the combustion technique using glycine as fuel. BNLT and BZT powders were calcined at temperatures of 825 °C for 4 h and 925 °C for 6 h, respectively. After that they were mixed with the different compositions. It was found that the optimum sintering temperature of (1−x)BNLT−xBZT ceramic was obtained at 1125 °C for 2 h. This ceramic had the highest density. The structure of the (1−x)BNLT−xBZT ceramics exhibited the co-existence of tetragonal and rhombohedral phases with x≤0.1. The tetragonality increases with the increase of x content. The average grain size, the density and the Curie temperatures decrease with increasing x content. The maximum dielectric constant and the highest Pr were at about 4850 and 12.7 μC/cm2, respectively, and were obtained by the 0.85BNLT−0.15BZT sample.
Journal: Ceramics International - Volume 39, Supplement 1, May 2013, Pages S421–S426