Stoichiometric control in Bi4Ti3O12 synthesis by novel hybrid solid state reaction

C. Gadea*, N. Phatharapeetranun, B. Ksapabutr, J.-C. Grivel, V. Esposito

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The synthesis of bismuth titanate Bi4Ti3O12 (BiT) is performed via a novel solid state reaction. The reaction is designed to control the stoichiometric content of the highly volatile element, i.e. Bi. The chemical route consists in trapping bismuth oxide colloids in a stabilized titanium based sol gel solution. The resulting colloidal-solution hybrid ink can be processed via various ceramic processes. After gelation of TiO2 in the sol-gel component the mixture reacts at high temperature (850 °C) to yield the BiT phase. The obtained material is c-axis oriented, and its lattice parameters, shrinkage and density matches the pure Bi4Ti3O12 phase. The sintered material exhibits enhanced higher dielectric constant (2 3 2) than usually reported for this phase.
Original languageEnglish
JournalMaterials Letters
Volume221
Pages (from-to)101-103
ISSN0167-577X
DOIs
Publication statusPublished - 2018

Keywords

  • Bismuth titanate
  • Synthesis
  • Sol-gel
  • Colloids
  • Dielectric

Cite this

@article{a351de44deff4ac4aac91565bea15819,
title = "Stoichiometric control in Bi4Ti3O12 synthesis by novel hybrid solid state reaction",
abstract = "The synthesis of bismuth titanate Bi4Ti3O12 (BiT) is performed via a novel solid state reaction. The reaction is designed to control the stoichiometric content of the highly volatile element, i.e. Bi. The chemical route consists in trapping bismuth oxide colloids in a stabilized titanium based sol gel solution. The resulting colloidal-solution hybrid ink can be processed via various ceramic processes. After gelation of TiO2 in the sol-gel component the mixture reacts at high temperature (850 °C) to yield the BiT phase. The obtained material is c-axis oriented, and its lattice parameters, shrinkage and density matches the pure Bi4Ti3O12 phase. The sintered material exhibits enhanced higher dielectric constant (2 3 2) than usually reported for this phase.",
keywords = "Bismuth titanate, Synthesis, Sol-gel, Colloids, Dielectric",
author = "C. Gadea and N. Phatharapeetranun and B. Ksapabutr and J.-C. Grivel and V. Esposito",
year = "2018",
doi = "10.1016/j.matlet.2018.03.130",
language = "English",
volume = "221",
pages = "101--103",
journal = "Materials Letters",
issn = "0167-577X",
publisher = "Elsevier",

}

Stoichiometric control in Bi4Ti3O12 synthesis by novel hybrid solid state reaction. / Gadea, C.; Phatharapeetranun, N.; Ksapabutr, B. ; Grivel, J.-C.; Esposito, V.

In: Materials Letters, Vol. 221, 2018, p. 101-103.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Stoichiometric control in Bi4Ti3O12 synthesis by novel hybrid solid state reaction

AU - Gadea, C.

AU - Phatharapeetranun, N.

AU - Ksapabutr, B.

AU - Grivel, J.-C.

AU - Esposito, V.

PY - 2018

Y1 - 2018

N2 - The synthesis of bismuth titanate Bi4Ti3O12 (BiT) is performed via a novel solid state reaction. The reaction is designed to control the stoichiometric content of the highly volatile element, i.e. Bi. The chemical route consists in trapping bismuth oxide colloids in a stabilized titanium based sol gel solution. The resulting colloidal-solution hybrid ink can be processed via various ceramic processes. After gelation of TiO2 in the sol-gel component the mixture reacts at high temperature (850 °C) to yield the BiT phase. The obtained material is c-axis oriented, and its lattice parameters, shrinkage and density matches the pure Bi4Ti3O12 phase. The sintered material exhibits enhanced higher dielectric constant (2 3 2) than usually reported for this phase.

AB - The synthesis of bismuth titanate Bi4Ti3O12 (BiT) is performed via a novel solid state reaction. The reaction is designed to control the stoichiometric content of the highly volatile element, i.e. Bi. The chemical route consists in trapping bismuth oxide colloids in a stabilized titanium based sol gel solution. The resulting colloidal-solution hybrid ink can be processed via various ceramic processes. After gelation of TiO2 in the sol-gel component the mixture reacts at high temperature (850 °C) to yield the BiT phase. The obtained material is c-axis oriented, and its lattice parameters, shrinkage and density matches the pure Bi4Ti3O12 phase. The sintered material exhibits enhanced higher dielectric constant (2 3 2) than usually reported for this phase.

KW - Bismuth titanate

KW - Synthesis

KW - Sol-gel

KW - Colloids

KW - Dielectric

U2 - 10.1016/j.matlet.2018.03.130

DO - 10.1016/j.matlet.2018.03.130

M3 - Journal article

VL - 221

SP - 101

EP - 103

JO - Materials Letters

JF - Materials Letters

SN - 0167-577X

ER -