Dielectric and piezoelectric properties near the morphotropic phase boundary for 0.94BNT-0.06BT ceramics synthesized by the solid-state combustion technique
| dc.contributor.author | Thatawong, Bhoowadol | |
| dc.contributor.author | Bhupaijit, Pamornnarumol | |
| dc.contributor.author | Lamyai, Yanwarood | |
| dc.contributor.author | Vittayakorn, Naratip | |
| dc.contributor.author | Bongkarn, Theerachai | |
| dc.date.accessioned | 2026-08-06T10:30:43Z | |
| dc.date.available | 2026-08-06T10:30:43Z | |
| dc.date.issued | 2021-01-01 | |
| dc.description.abstract | Ceramics of 0.94Bi<inf>0.5</inf>Na<inf>0.5</inf>TiO<inf>3</inf>-0.06BaTiO<inf>3</inf> (0.94BNT-0.06BT) were synthesized by the solid-state combustion technique with various calcination and sintering temperatures (600-800 °C and 1100-1200 °C). A pure perovskite phase was obtained from the powder calcined at 750 °C for 2 h. The phase structure, microstructure, dielectric, ferroelectric and piezoelectric properties of the 0.94BNT-0.06BT ceramics were investigated. The XRD patterns showed coexisting phases of rhombohedral (R) and tetragonal (T) in all samples. Moreover, a good R:T phase ratio of 53:47, as found by Rietveld refinement, good grain growth and high density (5.84 g/cm<sup>3</sup>) were found with a sintering temperature of 1150 °C for 2 h. An excellent maximum dielectric constant (ε<inf>m</inf> = 8405), good ferroelectric properties (P<inf>r</inf> = 28.2 µC/cm<sup>2</sup> and E<inf>c</inf> = 22.1 kV/cm) and a high piezoelectric coefficient (161 pC/N) were observed in this sample, which was near a morphotropic phase boundary (MPB). | |
| dc.identifier.citation | Ferroelectrics, 586(1), 199-212, 2021 | |
| dc.identifier.doi | 10.1080/00150193.2021.2014271 | |
| dc.identifier.issn | 00150193 | |
| dc.identifier.other | 2-s2.0-85124177739 | |
| dc.identifier.uri | https://dspace.kmitl.ac.th/handle/123456789/11532 | |
| dc.source | Ferroelectrics | |
| dc.subject | 0.94BNT-0.06BT | |
| dc.subject | dielectric | |
| dc.subject | morphotropic phase boundary | |
| dc.subject | piezoelectric | |
| dc.title | Dielectric and piezoelectric properties near the morphotropic phase boundary for 0.94BNT-0.06BT ceramics synthesized by the solid-state combustion technique | |
| dc.type | Article |