Effect Of Calcium Concentration On The Microstructure And Dielectric Properties Of Ca-Doped Plszt (Pb-La-Sr-Zr-Ti) System
Lead zirconate titanate (PZT) has perovskite structure and exhibits strong piezoelectric properties. PZT is recently modified by adding dopants to improve the dielectric properties. In this study, the effect of various calcium concentrations on the microstructure and dielectric properties of Ca-dope...
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| Format: | Monograph |
| Language: | English |
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Universiti Sains Malaysia
2017
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| Online Access: | http://eprints.usm.my/52438/ http://eprints.usm.my/52438/1/Effect%20Of%20Calcium%20Concentration%20On%20The%20Microstructure%20And%20Dielectric%20Properties%20Of%20Ca-Doped%20Plszt%20%28Pb-La-Sr-Zr-Ti%29%20System_Fun%20Yan%20Chin_B1_2017.pdf |
| _version_ | 1848882256684253184 |
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| author | Fun, Yan Chin |
| author_facet | Fun, Yan Chin |
| author_sort | Fun, Yan Chin |
| building | USM Institutional Repository |
| collection | Online Access |
| description | Lead zirconate titanate (PZT) has perovskite structure and exhibits strong piezoelectric properties. PZT is recently modified by adding dopants to improve the dielectric properties. In this study, the effect of various calcium concentrations on the microstructure and dielectric properties of Ca-doped PLSZT (Pb-La-Sr-Zr-Ti) is investigated. The starting high purity powder is weighed according to the molecular formula Pb0.93-xCaxLa0.02Sr0.05(Zr0.52Ti0.48)O3 with x = 0.00, 0.02, 0.04, 0.06, 0.08 and 0.10. Ca-doped PLSZT was prepared using high planetary ball mill, palletized and sintered at 1200 ºC for 3 hours with heating rate 5 ºC per minute. Characterizations of the samples were carried out by using XRD, SEM and LCR meter which measured from 1 kHz to 1 MHz. XRD results showed that all Ca-doped PLSZT samples present tetragonal and rhombohedral phase whereas SEM results showed that the grain size of the samples was decreased with increasing calcium concentration. However, the grain size began to enlarge at 8 mol% (x = 0.08) of calcium. The density was observed to be decreased with increasing amount of calcium. The dielectric constants and dielectric loss of samples were decreased with the increasing frequency of applied voltage from 1 kHz to 1 MHz. The dielectric constant is increased with the concentration of calcium. Among all the compositions studied, 10 mol% (x = 0.10) of Ca-doped PLSZT ceramic sample showed remarkable dielectric constant. |
| first_indexed | 2025-11-15T18:32:02Z |
| format | Monograph |
| id | usm-52438 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T18:32:02Z |
| publishDate | 2017 |
| publisher | Universiti Sains Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-524382022-04-28T03:53:41Z http://eprints.usm.my/52438/ Effect Of Calcium Concentration On The Microstructure And Dielectric Properties Of Ca-Doped Plszt (Pb-La-Sr-Zr-Ti) System Fun, Yan Chin T Technology TA401-492 Materials of engineering and construction. Mechanics of materials Lead zirconate titanate (PZT) has perovskite structure and exhibits strong piezoelectric properties. PZT is recently modified by adding dopants to improve the dielectric properties. In this study, the effect of various calcium concentrations on the microstructure and dielectric properties of Ca-doped PLSZT (Pb-La-Sr-Zr-Ti) is investigated. The starting high purity powder is weighed according to the molecular formula Pb0.93-xCaxLa0.02Sr0.05(Zr0.52Ti0.48)O3 with x = 0.00, 0.02, 0.04, 0.06, 0.08 and 0.10. Ca-doped PLSZT was prepared using high planetary ball mill, palletized and sintered at 1200 ºC for 3 hours with heating rate 5 ºC per minute. Characterizations of the samples were carried out by using XRD, SEM and LCR meter which measured from 1 kHz to 1 MHz. XRD results showed that all Ca-doped PLSZT samples present tetragonal and rhombohedral phase whereas SEM results showed that the grain size of the samples was decreased with increasing calcium concentration. However, the grain size began to enlarge at 8 mol% (x = 0.08) of calcium. The density was observed to be decreased with increasing amount of calcium. The dielectric constants and dielectric loss of samples were decreased with the increasing frequency of applied voltage from 1 kHz to 1 MHz. The dielectric constant is increased with the concentration of calcium. Among all the compositions studied, 10 mol% (x = 0.10) of Ca-doped PLSZT ceramic sample showed remarkable dielectric constant. Universiti Sains Malaysia 2017-06-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/52438/1/Effect%20Of%20Calcium%20Concentration%20On%20The%20Microstructure%20And%20Dielectric%20Properties%20Of%20Ca-Doped%20Plszt%20%28Pb-La-Sr-Zr-Ti%29%20System_Fun%20Yan%20Chin_B1_2017.pdf Fun, Yan Chin (2017) Effect Of Calcium Concentration On The Microstructure And Dielectric Properties Of Ca-Doped Plszt (Pb-La-Sr-Zr-Ti) System. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Bahan Sumber Mineral. (Submitted) |
| spellingShingle | T Technology TA401-492 Materials of engineering and construction. Mechanics of materials Fun, Yan Chin Effect Of Calcium Concentration On The Microstructure And Dielectric Properties Of Ca-Doped Plszt (Pb-La-Sr-Zr-Ti) System |
| title | Effect Of Calcium Concentration On The Microstructure And Dielectric Properties Of Ca-Doped Plszt (Pb-La-Sr-Zr-Ti) System |
| title_full | Effect Of Calcium Concentration On The Microstructure And Dielectric Properties Of Ca-Doped Plszt (Pb-La-Sr-Zr-Ti) System |
| title_fullStr | Effect Of Calcium Concentration On The Microstructure And Dielectric Properties Of Ca-Doped Plszt (Pb-La-Sr-Zr-Ti) System |
| title_full_unstemmed | Effect Of Calcium Concentration On The Microstructure And Dielectric Properties Of Ca-Doped Plszt (Pb-La-Sr-Zr-Ti) System |
| title_short | Effect Of Calcium Concentration On The Microstructure And Dielectric Properties Of Ca-Doped Plszt (Pb-La-Sr-Zr-Ti) System |
| title_sort | effect of calcium concentration on the microstructure and dielectric properties of ca-doped plszt (pb-la-sr-zr-ti) system |
| topic | T Technology TA401-492 Materials of engineering and construction. Mechanics of materials |
| url | http://eprints.usm.my/52438/ http://eprints.usm.my/52438/1/Effect%20Of%20Calcium%20Concentration%20On%20The%20Microstructure%20And%20Dielectric%20Properties%20Of%20Ca-Doped%20Plszt%20%28Pb-La-Sr-Zr-Ti%29%20System_Fun%20Yan%20Chin_B1_2017.pdf |