High piezoelectric response in the new coexistent phase boundary of 0.87BaTiO3-(0.13-x)BaZrO3-xCaTiO3
| dc.contributor.author | Sutapun, Manoon | |
| dc.contributor.author | Vittayakorn, Wanwilai | |
| dc.contributor.author | Muanghlua, Rangson | |
| dc.contributor.author | Vittayakorn, Naratip | |
| dc.date.accessioned | 2026-08-06T10:12:27Z | |
| dc.date.available | 2026-08-06T10:12:27Z | |
| dc.date.issued | 2015-12-05 | |
| dc.description.abstract | An investigation of the coexistent ferroelectric phase was carried out on the ternary system of 0.87BaTiO<inf>3</inf>-(0.13-x)BaZrO<inf>3</inf>-xCaTiO<inf>3</inf> [abbreviated as BT-BZ-xCT (where 0.00≤x≤0.13)]. Temperature-, frequency-dependent dielectric data, electric field-dependent strain and polarization as a function of composition are presented in order to understand the relationships of structure-properties and find the high piezoelectric response in this system. Results showed that ceramics in the composition range of 0.00≤x<0.04 were of a rhombohedral structure and transformed into a tetragonal structure at x>0.06. The multiphase coexistence of the rhombohedral and tetragonal phase in this system was identified at x=0.06. A large, virtually hysteresis-free electric field induced strain of 0.23% was achieved with the composition, x=0.06, at 40kV/cm on the boundary between rhombohedral and tetragonal phase. This relates to an extraordinarily high and normalized piezoelectric coefficient (S<inf>max</inf>/E<inf>max</inf>) of 1280pm/V, which was reached at a low electric field applied at 10kV/mm. These results indicated that a high piezoelectric response may stem primarily from the rhombohedral-tetragonal phase boundary, due to greater lattice softening and reduced energy barriers for polarized rotation. | |
| dc.identifier.citation | Materials and Design, 86, 564-574, 2015 | |
| dc.identifier.doi | 10.1016/j.matdes.2015.07.172 | |
| dc.identifier.issn | 02641275 | |
| dc.identifier.other | 2-s2.0-84944072225 | |
| dc.identifier.uri | https://dspace.kmitl.ac.th/handle/123456789/6485 | |
| dc.source | Materials and Design | |
| dc.subject | BaTiO3 | |
| dc.subject | BaZrO3 | |
| dc.subject | CaTiO3 | |
| dc.subject | Lead-free piezoelectric | |
| dc.subject | Phase transition | |
| dc.title | High piezoelectric response in the new coexistent phase boundary of 0.87BaTiO3-(0.13-x)BaZrO3-xCaTiO3 | |
| dc.type | Article |