Giant dielectric properties of CaCu3Ti4O12 ceramics synthesized by solid state reaction route
CaCu3Ti4O12 (CCTO) ceramics were prepared by solid-state reaction route, calcination at 1050°C for 4 h and sintering at 1050 and 1100°C for 8 h. X-ray diffraction and Raman studies of the CCTO powders and sintered samples confirmed the formation of single phase cubic structure with small amount of C...
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| Format: | Article |
| Language: | English |
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University of Novi Sad
2023-12-01
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| Series: | Processing and Application of Ceramics |
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| Online Access: | https://doiserbia.nb.rs/img/doi/1820-6131/2023/1820-61312304393K.pdf |
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| author | Kajal Parida A.P. Kumar Pawan |
| author_facet | Kajal Parida A.P. Kumar Pawan |
| author_sort | Kajal Parida A.P. |
| collection | DOAJ |
| description | CaCu3Ti4O12 (CCTO) ceramics were prepared by solid-state reaction route, calcination at 1050°C for 4 h and sintering at 1050 and 1100°C for 8 h. X-ray diffraction and Raman studies of the CCTO powders and sintered samples confirmed the formation of single phase cubic structure with small amount of CuO in the sintered ceramics. Scanning electron microscope study revealed the average grain size between ~6 μm to ~29 μm in the CCTO ceramics sintered at 1100°C. Room temperature giant dielectric constant (εr) of the order of ~105 with relatively low dielectric loss at 100Hz frequency was obtained in the CCTO ceramics sintered at 1100°C. The present study has revealed that grain size plays an important role in enhancing the dielectric properties of CCTO ceramics. |
| first_indexed | 2024-03-08T08:48:13Z |
| format | Article |
| id | doaj.art-39e1d738f9ab4c999a28d74592f9328d |
| institution | Directory Open Access Journal |
| issn | 1820-6131 2406-1034 |
| language | English |
| last_indexed | 2024-03-08T08:48:13Z |
| publishDate | 2023-12-01 |
| publisher | University of Novi Sad |
| record_format | Article |
| series | Processing and Application of Ceramics |
| spelling | doaj.art-39e1d738f9ab4c999a28d74592f9328d2024-02-01T13:28:04ZengUniversity of Novi SadProcessing and Application of Ceramics1820-61312406-10342023-12-0117439339910.2298/PAC2304393KGiant dielectric properties of CaCu3Ti4O12 ceramics synthesized by solid state reaction routeKajal Parida A.P.0Kumar Pawan1Department of Physics and Astronomy, National institute of Technology Rourkela, Rourkela, IndiaDepartment of Physics and Astronomy, National institute of Technology Rourkela, Rourkela, IndiaCaCu3Ti4O12 (CCTO) ceramics were prepared by solid-state reaction route, calcination at 1050°C for 4 h and sintering at 1050 and 1100°C for 8 h. X-ray diffraction and Raman studies of the CCTO powders and sintered samples confirmed the formation of single phase cubic structure with small amount of CuO in the sintered ceramics. Scanning electron microscope study revealed the average grain size between ~6 μm to ~29 μm in the CCTO ceramics sintered at 1100°C. Room temperature giant dielectric constant (εr) of the order of ~105 with relatively low dielectric loss at 100Hz frequency was obtained in the CCTO ceramics sintered at 1100°C. The present study has revealed that grain size plays an important role in enhancing the dielectric properties of CCTO ceramics.https://doiserbia.nb.rs/img/doi/1820-6131/2023/1820-61312304393K.pdfcacu3ti4o12structure characterizationdielectric properties |
| spellingShingle | Kajal Parida A.P. Kumar Pawan Giant dielectric properties of CaCu3Ti4O12 ceramics synthesized by solid state reaction route Processing and Application of Ceramics cacu3ti4o12 structure characterization dielectric properties |
| title | Giant dielectric properties of CaCu3Ti4O12 ceramics synthesized by solid state reaction route |
| title_full | Giant dielectric properties of CaCu3Ti4O12 ceramics synthesized by solid state reaction route |
| title_fullStr | Giant dielectric properties of CaCu3Ti4O12 ceramics synthesized by solid state reaction route |
| title_full_unstemmed | Giant dielectric properties of CaCu3Ti4O12 ceramics synthesized by solid state reaction route |
| title_short | Giant dielectric properties of CaCu3Ti4O12 ceramics synthesized by solid state reaction route |
| title_sort | giant dielectric properties of cacu3ti4o12 ceramics synthesized by solid state reaction route |
| topic | cacu3ti4o12 structure characterization dielectric properties |
| url | https://doiserbia.nb.rs/img/doi/1820-6131/2023/1820-61312304393K.pdf |
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