RT Journal Article
T1 A feasible pathway to stabilize monoclinic and tetragonal phase coexistence in barium titanate-based ceramics
A1 Necib, Jallouli
A1 López Sánchez, Jesús
A1 Rubio Marcos, Fernando
A1 Serrano, Aída
A1 Navarro Palma, Elena
A1 Peña Moreno, Álvaro
A1 Taoufik, Mnasri
A1 Smari, Mourad
A1 Rojas Hernández, Rocío Estefanía
A1 Carmona Tejero, Noemí
A1 Marín Palacios, María Pilar
AB Multiphase coexistence has attracted significant interest in recent years because its control has entailed a significant breakthrough for the piezoelectric activity enhancement of lead-free piezoelectric oxides. However, the comprehension of phase coexistence still has many controversies including an adequate synthesis process and/or the role played by crystalline phases in functional properties. In this study, functional barium titanate [BaTiO_(3), (BTO)]-based materials with tunable functional properties were obtained by compositional modification via Bismuth (Bi) doping. Towards this aim, we systematically synthesized BTO-based materials by a sol-gel method, focusing on the control of Bi substitution in the BaTiO_(3) structure. In particular, we found that the substitution of Bi^(+3) leads to the stabilization of a monoclinic-tetragonal (M-T) phase boundary close to room temperature, which facilities the polarization process of the system. As a surprising result, we believe that the simple and cost-effective strategy and design principles described in this work open up the possibility of obtaining BTO-based lead-free ceramics with enhanced properties induced by the stabilization of the phase coexistence, expanding their application range.
PB Royal Soc. Chemistry
SN 2050-7526
YR 2022
FD 2022-11
LK https://hdl.handle.net/20.500.14352/72854
UL https://hdl.handle.net/20.500.14352/72854
LA eng
NO © 2022. The Royal Society of Chemistry The present work has been supported by the Ministerio Español de Ciencia e Innovación (MICINN) through the projects: RTI2018-095856-B-C21 and RTI2018-095303-A-C52; Ministerio de Asuntos Económicos y Transformación Digital (MINECO) by PID2020-114192RB-C41; and Comunidad de Madrid, Spain, by S2018/NMT-4321 NANOMAGCOST and ‘‘Doctorados Industriales’’ project (IND2020/IND-17375), which is co-financed by the European Social Fund. A. S. acknowledges the financial support from the Comunidad de Madrid for an ‘‘Atracción de Talento Investigador’’ contract (2017-t2/IND5395). A. P. received funding from grant PRE2019-0875001234, Ministerio de Ciencia e Innovación (MICINN), Spain. R. E. Rojas-Hernandez acknowledges financial support from the Estonian Research Council (grants PSG-466).
NO Ministerio de Ciencia e Innovación (MICINN) / FEDER
NO Ministerio de Ciencia e Innovación (MICINN)
NO Estonian Research Council
NO Comunidad de Madrid
DS Docta Complutense
RD 5 abr 2025