Abstract
A layered titanate H1.07Ti1.73O4·nH2O (HTO) with a plate-like particle morphology was used as a template for the fabrication of [100]-oriented bismuth sodium titanate (Na0.5Bi0.5TiO3, or BNT) ceramics by a reactive-templated grain growth (RTGG) method. The oriented BNT ceramic with a high degree of orientation (95%), high density (98%), and small grain size (2μm) was fabricated for the first time by the RTGG method using a HTO-TiO2-Bi2O3-Na2CO3 reaction system. The oriented BNT ceramic is formed by a topotactic transformation reaction of plate-like HTO template particles to plate-like BNT mesocrystal particles, and then epitaxial crystal growth of BNT on the BNT mesocrystal particles. The epitaxial crystal growth reaction is affected by TiO2/HTO mole ratio, chemical component of the starting material, and calcination temperature program. The fabricated oriented BNT ceramic shows a higher d33* value than the non-oriented BNT ceramic, suggesting the promising application to high performance Pb-free piezoelectric materials.
| Original language | English |
|---|---|
| Pages (from-to) | 1169-1180 |
| Number of pages | 12 |
| Journal | Journal of the European Ceramic Society |
| Volume | 34 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 1 2014 |
| Externally published | Yes |
Fingerprint
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Materials Chemistry
Cite this
Fabrication of [100]-oriented bismuth sodium titanate ceramics with small grain size and high density for piezoelectric materials. / Hu, Dengwei; Mori, Kotaro; Kong, Xingang; Shinagawa, Kazunari; Wada, Satoshi; Feng, Qi.
In: Journal of the European Ceramic Society, Vol. 34, No. 5, 01.05.2014, p. 1169-1180.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fabrication of [100]-oriented bismuth sodium titanate ceramics with small grain size and high density for piezoelectric materials
AU - Hu, Dengwei
AU - Mori, Kotaro
AU - Kong, Xingang
AU - Shinagawa, Kazunari
AU - Wada, Satoshi
AU - Feng, Qi
PY - 2014/5/1
Y1 - 2014/5/1
N2 - A layered titanate H1.07Ti1.73O4·nH2O (HTO) with a plate-like particle morphology was used as a template for the fabrication of [100]-oriented bismuth sodium titanate (Na0.5Bi0.5TiO3, or BNT) ceramics by a reactive-templated grain growth (RTGG) method. The oriented BNT ceramic with a high degree of orientation (95%), high density (98%), and small grain size (2μm) was fabricated for the first time by the RTGG method using a HTO-TiO2-Bi2O3-Na2CO3 reaction system. The oriented BNT ceramic is formed by a topotactic transformation reaction of plate-like HTO template particles to plate-like BNT mesocrystal particles, and then epitaxial crystal growth of BNT on the BNT mesocrystal particles. The epitaxial crystal growth reaction is affected by TiO2/HTO mole ratio, chemical component of the starting material, and calcination temperature program. The fabricated oriented BNT ceramic shows a higher d33* value than the non-oriented BNT ceramic, suggesting the promising application to high performance Pb-free piezoelectric materials.
AB - A layered titanate H1.07Ti1.73O4·nH2O (HTO) with a plate-like particle morphology was used as a template for the fabrication of [100]-oriented bismuth sodium titanate (Na0.5Bi0.5TiO3, or BNT) ceramics by a reactive-templated grain growth (RTGG) method. The oriented BNT ceramic with a high degree of orientation (95%), high density (98%), and small grain size (2μm) was fabricated for the first time by the RTGG method using a HTO-TiO2-Bi2O3-Na2CO3 reaction system. The oriented BNT ceramic is formed by a topotactic transformation reaction of plate-like HTO template particles to plate-like BNT mesocrystal particles, and then epitaxial crystal growth of BNT on the BNT mesocrystal particles. The epitaxial crystal growth reaction is affected by TiO2/HTO mole ratio, chemical component of the starting material, and calcination temperature program. The fabricated oriented BNT ceramic shows a higher d33* value than the non-oriented BNT ceramic, suggesting the promising application to high performance Pb-free piezoelectric materials.
UR - http://www.scopus.com/inward/record.url?scp=84892482042&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84892482042&partnerID=8YFLogxK
U2 - 10.1016/j.jeurceramsoc.2013.11.031
DO - 10.1016/j.jeurceramsoc.2013.11.031
M3 - Article
VL - 34
SP - 1169
EP - 1180
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
SN - 0955-2219
IS - 5
ER -