Phase Formation, Microstructure and Electric Properties of Vanadium Doped Lead-Free BaTi0.91Sn0.09O3 Ceramics
| dc.contributor.author | Pattanakasem, Wiwat | |
| dc.contributor.author | Charoenthai, Nipaphat | |
| dc.contributor.author | Vittayakorn, Naratip | |
| dc.contributor.author | Bongkarn, Theerachai | |
| dc.date.accessioned | 2026-08-06T10:39:23Z | |
| dc.date.available | 2026-08-06T10:39:23Z | |
| dc.date.issued | 2023-01-01 | |
| dc.description.abstract | Lead-free Ba(Ti<inf>0.91</inf>Sn<inf>0.09</inf>)<inf>1-x</inf>V<inf>x</inf>O<inf>3</inf> (BTSV, x = 0, 0.005,0.010, 0.015, and 0.020) ceramics were prepared by the conventional solid-state sintering method with a calcination temperature of 1200 °C for 2 h and a sintering temperature between 1350 °C and 1400 °C for 4 h. The effect of vanadium (V) doping on the phase formation, microstructure and electrical properties of the ceramics was investigated. X-ray diffraction (XRD) measurements revealed that the ceramics with x = 0 and 0.005 had pure perovskite structures with no detectable impurity, while the ceramics with x ≥ 0.010 exhibited perovskite structures and had secondary impurity phases. Coexisting orthorhombic and tetragonal phases were observed and the Rietveld refinement analysis suggested that the tetragonal phase increased with increased V<sup>5+</sup> substitution. When x increased from 0 to 0.010, the average grain size increased from 47 to 62 µm and then dropped, while the density (ρ) decreased from 5.98 to 5.64 g/cm<sup>3</sup> when x increased. Furthermore, the BTSV ceramics exhibited increased porosity, Curie temperatures (T <inf>C</inf> ∼ 42 °C to 52 °C) and coercive field (E <inf>c</inf>), while the dielectric constant at the Curie temperature (ε<inf>C</inf>) and the remnant polarization (P <inf>r</inf>) of the ceramics decreased (∼18023 to 6110 and ∼7.42 to 4.88 µC/cm<sup>2</sup>, respectively) when V<sup>5+</sup> doping increased. | |
| dc.identifier.citation | Integrated Ferroelectrics, 238(1), 186-196, 2023 | |
| dc.identifier.doi | 10.1080/10584587.2023.2234566 | |
| dc.identifier.issn | 10584587 | |
| dc.identifier.other | 2-s2.0-85172812958 | |
| dc.identifier.uri | https://dspace.kmitl.ac.th/handle/123456789/13862 | |
| dc.source | Integrated Ferroelectrics | |
| dc.subject | dielectric | |
| dc.subject | ferroelectric | |
| dc.subject | microstructure | |
| dc.subject | Phase formation | |
| dc.subject | Rietveld refinement | |
| dc.title | Phase Formation, Microstructure and Electric Properties of Vanadium Doped Lead-Free BaTi0.91Sn0.09O3 Ceramics | |
| dc.type | Article |