Effect of sintering temperatures on electrical properties of 0.95(Na0.5K0.5) NbO3-0.05(Ba0.5Sr0.5)(Ti0.95Sn0.05)O3 lead-free ceramics
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In this study, we fabricated the 0.95(Na0.5K0.5)NbO3-0.05(Ba0.5Sr0.5)(Ti0.95Sn0.05)O3(here after NKN-BSTS) lead free ceramics by conventional solid state reaction method. The effects of sintering temperatures on electrical properties were investigated in detail. The NKN-BSTS ceramics sintered at 1080℃ ~ 1120℃. The poling temperature and electric field cause superior piezoelectric properties of NKN-BSTS ceramics and the piezoelectric properties were shown the highest value at optimum sintering temperature. The NKN-BSTS ceramics sintered at 1100℃ show an optimal performance with dielectric constant was 4485, electromechanical coupling constant was 0.37 and the piezoelectric constant was 213 ρC/N. Therefore, it is believed that the NKN-BSTS ceramics is a candidate material with good prospect to make lead-free piezoelectric ceramics.
Abstract
In this study, we fabricated the 0.95(Na0.5K0.5)NbO3-0.05(Ba0.5Sr0.5)(Ti0.95Sn0.05)O3(here after NKN-BSTS) lead free ceramics by conventional solid state reaction method. The effects of sintering temperatures on electrical properties were investigated in detail. The NKN-BSTS ceramics sintered at 1080℃ ~ 1120℃. The poling temperature and electric field cause superior piezoelectric properties of NKN-BSTS ceramics and the piezoelectric properties were shown the highest value at optimum sintering temperature. The NKN-BSTS ceramics sintered at 1100℃ show an optimal performance with dielectric constant was 4485, electromechanical coupling constant was 0.37 and the piezoelectric constant was 213 ρC/N. Therefore, it is believed that the NKN-BSTS ceramics is a candidate material with good prospect to make lead-free piezoelectric ceramics.
참고문헌 (17)
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