Effect of Li and Bi co-doping and sintering temperature on dielectric properties of PLZT 9/65/35 ceramics
© 2016 Elsevier Ltd and Techna Group S.r.l. In the present study, lead-lanthanum-zirconate-titanate (PLZT) ceramics were prepared by a solid-state mixed oxide method. Different amount of lithium carbonate and bismuth oxide (0.15 mol%, 0.45 mol% and 0.75 mol%), where the ratio of Li:Bi =1:1 by mole,...
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th-cmuir.6653943832-405832017-09-28T04:10:21Z Effect of Li and Bi co-doping and sintering temperature on dielectric properties of PLZT 9/65/35 ceramics Limpichaipanit A. Ngamjarurojana A. © 2016 Elsevier Ltd and Techna Group S.r.l. In the present study, lead-lanthanum-zirconate-titanate (PLZT) ceramics were prepared by a solid-state mixed oxide method. Different amount of lithium carbonate and bismuth oxide (0.15 mol%, 0.45 mol% and 0.75 mol%), where the ratio of Li:Bi =1:1 by mole, was added to PLZT to investigate the effect of Li and Bi co-doping. The ceramic samples were sintered at the temperatures of 1000, 1050, 1100, 1150 and 1200 °C for 4 h. After that, all samples were subjected to phase identification, physical property determination (sintered density and microstructure) and dielectric property measurement. It was found that doping of 0.15 mol% Li and Bi resulted in maximum dielectric constant (ε r =7819) when sintered at 1200 °C. Grain size of PLZT ceramics was dependent on sintering temperature and dielectric properties were affected by the chemical composition rather than the grain size of the ceramics. Therefore, co-doping of Li and Bi was useful as it could improve the dielectric properties of PLZT ceramics. 2017-09-28T04:10:21Z 2017-09-28T04:10:21Z 5 Journal 02728842 2-s2.0-85009388245 10.1016/j.ceramint.2016.12.094 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85009388245&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/40583 |
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© 2016 Elsevier Ltd and Techna Group S.r.l. In the present study, lead-lanthanum-zirconate-titanate (PLZT) ceramics were prepared by a solid-state mixed oxide method. Different amount of lithium carbonate and bismuth oxide (0.15 mol%, 0.45 mol% and 0.75 mol%), where the ratio of Li:Bi =1:1 by mole, was added to PLZT to investigate the effect of Li and Bi co-doping. The ceramic samples were sintered at the temperatures of 1000, 1050, 1100, 1150 and 1200 °C for 4 h. After that, all samples were subjected to phase identification, physical property determination (sintered density and microstructure) and dielectric property measurement. It was found that doping of 0.15 mol% Li and Bi resulted in maximum dielectric constant (ε r =7819) when sintered at 1200 °C. Grain size of PLZT ceramics was dependent on sintering temperature and dielectric properties were affected by the chemical composition rather than the grain size of the ceramics. Therefore, co-doping of Li and Bi was useful as it could improve the dielectric properties of PLZT ceramics. |
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Limpichaipanit A. Ngamjarurojana A. |
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Limpichaipanit A. Ngamjarurojana A. Effect of Li and Bi co-doping and sintering temperature on dielectric properties of PLZT 9/65/35 ceramics |
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Limpichaipanit A. Ngamjarurojana A. |
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Limpichaipanit A. |
title |
Effect of Li and Bi co-doping and sintering temperature on dielectric properties of PLZT 9/65/35 ceramics |
title_short |
Effect of Li and Bi co-doping and sintering temperature on dielectric properties of PLZT 9/65/35 ceramics |
title_full |
Effect of Li and Bi co-doping and sintering temperature on dielectric properties of PLZT 9/65/35 ceramics |
title_fullStr |
Effect of Li and Bi co-doping and sintering temperature on dielectric properties of PLZT 9/65/35 ceramics |
title_full_unstemmed |
Effect of Li and Bi co-doping and sintering temperature on dielectric properties of PLZT 9/65/35 ceramics |
title_sort |
effect of li and bi co-doping and sintering temperature on dielectric properties of plzt 9/65/35 ceramics |
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2017 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85009388245&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/40583 |
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