Abstract
Dense barium titanate (BaTiO 3 , BT) nanoparticle accumulations were prepared by an electrophoresis deposition (EPD) method using three kinds of BT nanoparticles with different particles sizes and tetragonality. First, the BT particles were dispersed into ethanol using ball-milling technique, and an optimum milling condition was investigated. As the results, it was confirmed that ball-milling led to a formation of mixture between single-dispersed nanoparticles and aggregated particles. Thus, the aggregated particles in the slurry were removed by a centrifuge in order to obtain narrow the size distribution. Using well-dispersed slurry, BT nanoparticle accumulations were deposited on paradigm electrode by the EPD method. Despite various BT nanoparticles, the dense BT nanoparticle accumulations were obtained at relative densities of around 60 %. After gold electrode deposition on the both surfaces of the accumulations by spattering method, dielectric properties were measured at 20 °C, the highest dielectric constants of around 160 was measured at 10 MHz.
| Original language | English |
|---|---|
| Title of host publication | Electroceramics in Japan XIV |
| Pages | 35-38 |
| Number of pages | 4 |
| DOIs | |
| Publication status | Published - 2011 Jul 26 |
| Externally published | Yes |
| Event | 30th Electronics Division Meeting of the Ceramic Society of Japan - Tokyo, Japan Duration: 2010 Oct 29 → 2010 Oct 30 |
Publication series
| Name | Key Engineering Materials |
|---|---|
| Volume | 485 |
| ISSN (Print) | 1013-9826 |
Other
| Other | 30th Electronics Division Meeting of the Ceramic Society of Japan |
|---|---|
| Country | Japan |
| City | Tokyo |
| Period | 10/10/29 → 10/10/30 |
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Keywords
- Barium titanate
- Dense particle accumulations
- Dispersion
- Electrophoresis deposition
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
Cite this
Preparation and dielectric properties of dense barium titanate nanoparticle accumulations by electrophoresis deposition method. / Wada, Satoshi; Kondo, Shuhei; Kita, Tatsuya; Nakata, Risa; Fujii, Ichiro; Nakashima, Koichi; Miyajima, Naoya; Suzuki, Tohru; Uchikoshi, Tetsuro; Sakka, Yoshio; Takei, Takahiro; Kumada, Nobuhiro.
Electroceramics in Japan XIV. 2011. p. 35-38 (Key Engineering Materials; Vol. 485).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Preparation and dielectric properties of dense barium titanate nanoparticle accumulations by electrophoresis deposition method
AU - Wada, Satoshi
AU - Kondo, Shuhei
AU - Kita, Tatsuya
AU - Nakata, Risa
AU - Fujii, Ichiro
AU - Nakashima, Koichi
AU - Miyajima, Naoya
AU - Suzuki, Tohru
AU - Uchikoshi, Tetsuro
AU - Sakka, Yoshio
AU - Takei, Takahiro
AU - Kumada, Nobuhiro
PY - 2011/7/26
Y1 - 2011/7/26
N2 - Dense barium titanate (BaTiO 3 , BT) nanoparticle accumulations were prepared by an electrophoresis deposition (EPD) method using three kinds of BT nanoparticles with different particles sizes and tetragonality. First, the BT particles were dispersed into ethanol using ball-milling technique, and an optimum milling condition was investigated. As the results, it was confirmed that ball-milling led to a formation of mixture between single-dispersed nanoparticles and aggregated particles. Thus, the aggregated particles in the slurry were removed by a centrifuge in order to obtain narrow the size distribution. Using well-dispersed slurry, BT nanoparticle accumulations were deposited on paradigm electrode by the EPD method. Despite various BT nanoparticles, the dense BT nanoparticle accumulations were obtained at relative densities of around 60 %. After gold electrode deposition on the both surfaces of the accumulations by spattering method, dielectric properties were measured at 20 °C, the highest dielectric constants of around 160 was measured at 10 MHz.
AB - Dense barium titanate (BaTiO 3 , BT) nanoparticle accumulations were prepared by an electrophoresis deposition (EPD) method using three kinds of BT nanoparticles with different particles sizes and tetragonality. First, the BT particles were dispersed into ethanol using ball-milling technique, and an optimum milling condition was investigated. As the results, it was confirmed that ball-milling led to a formation of mixture between single-dispersed nanoparticles and aggregated particles. Thus, the aggregated particles in the slurry were removed by a centrifuge in order to obtain narrow the size distribution. Using well-dispersed slurry, BT nanoparticle accumulations were deposited on paradigm electrode by the EPD method. Despite various BT nanoparticles, the dense BT nanoparticle accumulations were obtained at relative densities of around 60 %. After gold electrode deposition on the both surfaces of the accumulations by spattering method, dielectric properties were measured at 20 °C, the highest dielectric constants of around 160 was measured at 10 MHz.
KW - Barium titanate
KW - Dense particle accumulations
KW - Dispersion
KW - Electrophoresis deposition
UR - http://www.scopus.com/inward/record.url?scp=79960585204&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79960585204&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.485.35
DO - 10.4028/www.scientific.net/KEM.485.35
M3 - Conference contribution
SN - 9783037851821
T3 - Key Engineering Materials
SP - 35
EP - 38
BT - Electroceramics in Japan XIV
ER -