Abstract
Barium titanate powder is widely used in multilayer ceramic capacitors (MLCC) because of its' superior ferroelectric and dielectric properties. Presently, barium titanate powder is mass-produced using a conventional solid state reaction. However, the conflicting literature reports clearly show that the solid state reaction mechanism is not well understood. Synthesizing nano-sized barium titanate powders with less agglomeration using a solid state reaction method at a low calcination temperature has become a hot research topic. This study examines the effect of polyethyleneimine (PEI) surfactant addition on BaTiO3 formation in a solid sate reaction. XRD, DTA and TEM are used in this investigation. The results indicate that PEI addition can promote BaCO3 and TiO2 mixing homogeneity, which enhances the interfacial reaction between BaCO3 and TiO2. BaTiO3 formation can be obtained through the interfacial reaction between BaCO3 and TiO2 at the intimate contact between the reactants and Ti+4 ion diffusion along the surfaces or grain boundaries of BaTiO3 powders, thereby obtaining a single phase BaTiO3 powder when calcining at low temperatures for a long period.
| Original language | English |
|---|---|
| Pages (from-to) | 7632-7638 |
| Number of pages | 7 |
| Journal | Journal of Alloys and Compounds |
| Volume | 509 |
| Issue number | 28 |
| DOIs | |
| Publication status | Published - 2011 Jun 1 |
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All Science Journal Classification (ASJC) codes
- Mechanical Engineering
- Mechanics of Materials
- Materials Chemistry
- Metals and Alloys
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Polyethyleneimine surfactant effect on the formation of nano-sized BaTiO3 powder via a solid state reaction. / Hsiang, Hsing-I; Chang, Yu Lun; Fang, Jang Sen; Yen, Fu Su.
In: Journal of Alloys and Compounds, Vol. 509, No. 28, 01.06.2011, p. 7632-7638.Research output: Contribution to journal › Article
TY - JOUR
T1 - Polyethyleneimine surfactant effect on the formation of nano-sized BaTiO3 powder via a solid state reaction
AU - Hsiang, Hsing-I
AU - Chang, Yu Lun
AU - Fang, Jang Sen
AU - Yen, Fu Su
PY - 2011/6/1
Y1 - 2011/6/1
N2 - Barium titanate powder is widely used in multilayer ceramic capacitors (MLCC) because of its' superior ferroelectric and dielectric properties. Presently, barium titanate powder is mass-produced using a conventional solid state reaction. However, the conflicting literature reports clearly show that the solid state reaction mechanism is not well understood. Synthesizing nano-sized barium titanate powders with less agglomeration using a solid state reaction method at a low calcination temperature has become a hot research topic. This study examines the effect of polyethyleneimine (PEI) surfactant addition on BaTiO3 formation in a solid sate reaction. XRD, DTA and TEM are used in this investigation. The results indicate that PEI addition can promote BaCO3 and TiO2 mixing homogeneity, which enhances the interfacial reaction between BaCO3 and TiO2. BaTiO3 formation can be obtained through the interfacial reaction between BaCO3 and TiO2 at the intimate contact between the reactants and Ti+4 ion diffusion along the surfaces or grain boundaries of BaTiO3 powders, thereby obtaining a single phase BaTiO3 powder when calcining at low temperatures for a long period.
AB - Barium titanate powder is widely used in multilayer ceramic capacitors (MLCC) because of its' superior ferroelectric and dielectric properties. Presently, barium titanate powder is mass-produced using a conventional solid state reaction. However, the conflicting literature reports clearly show that the solid state reaction mechanism is not well understood. Synthesizing nano-sized barium titanate powders with less agglomeration using a solid state reaction method at a low calcination temperature has become a hot research topic. This study examines the effect of polyethyleneimine (PEI) surfactant addition on BaTiO3 formation in a solid sate reaction. XRD, DTA and TEM are used in this investigation. The results indicate that PEI addition can promote BaCO3 and TiO2 mixing homogeneity, which enhances the interfacial reaction between BaCO3 and TiO2. BaTiO3 formation can be obtained through the interfacial reaction between BaCO3 and TiO2 at the intimate contact between the reactants and Ti+4 ion diffusion along the surfaces or grain boundaries of BaTiO3 powders, thereby obtaining a single phase BaTiO3 powder when calcining at low temperatures for a long period.
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UR - http://www.scopus.com/inward/citedby.url?scp=79958227868&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2011.04.116
DO - 10.1016/j.jallcom.2011.04.116
M3 - Article
VL - 509
SP - 7632
EP - 7638
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - 28
ER -