Abstract
Nano-sized BaTiO3 powders doped with Y, Eu and La components were prepared by ultrasonic spray pyrolysis from a spray solution with citric acid. The precursor BaTiO3 powders had a large size, fractured and hollow structures irrespective of the type of dopant. The calcined BaTiO 3 powders with and without dopants had nanometre sizes after a simple milling by hand using an agate mortar. The mean size of La-doped BaTiO 3 powders measured from the transmission electron microscope (TEM) images was 38 nm at a calcination temperature of 700 °C. The mean crystallite sizes of the doped and undoped BaTiO3 powders changed from 20 to 33 nm according to the type of dopant at a calcination temperature of 700 °C. An effective grain growth inhibition took place with the doped BaTiO3 ceramics. The average grain sizes of La and Eu-doped BaTiO3 ceramics were each 380 and 400 nm at a sintering temperature of 1280 °C.
| Original language | English |
|---|---|
| Pages (from-to) | 307-310 |
| Number of pages | 4 |
| Journal | Journal of Ceramic Processing Research |
| Volume | 9 |
| Issue number | 3 |
| Publication status | Published - 2008 Aug 11 |
| Externally published | Yes |
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Keywords
- Barium titanate
- Nano particle
- Spray pyrolysis
ASJC Scopus subject areas
- Ceramics and Composites
Cite this
Effects of dopants on grain growth of nano-sized BaTiO3 powders prepared by citric acid-assisted spray pyrolysis. / Jung, Dae Soo; Lee, Sang Ho; Kang, Yun Chan.
In: Journal of Ceramic Processing Research, Vol. 9, No. 3, 11.08.2008, p. 307-310.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effects of dopants on grain growth of nano-sized BaTiO3 powders prepared by citric acid-assisted spray pyrolysis
AU - Jung, Dae Soo
AU - Lee, Sang Ho
AU - Kang, Yun Chan
PY - 2008/8/11
Y1 - 2008/8/11
N2 - Nano-sized BaTiO3 powders doped with Y, Eu and La components were prepared by ultrasonic spray pyrolysis from a spray solution with citric acid. The precursor BaTiO3 powders had a large size, fractured and hollow structures irrespective of the type of dopant. The calcined BaTiO 3 powders with and without dopants had nanometre sizes after a simple milling by hand using an agate mortar. The mean size of La-doped BaTiO 3 powders measured from the transmission electron microscope (TEM) images was 38 nm at a calcination temperature of 700 °C. The mean crystallite sizes of the doped and undoped BaTiO3 powders changed from 20 to 33 nm according to the type of dopant at a calcination temperature of 700 °C. An effective grain growth inhibition took place with the doped BaTiO3 ceramics. The average grain sizes of La and Eu-doped BaTiO3 ceramics were each 380 and 400 nm at a sintering temperature of 1280 °C.
AB - Nano-sized BaTiO3 powders doped with Y, Eu and La components were prepared by ultrasonic spray pyrolysis from a spray solution with citric acid. The precursor BaTiO3 powders had a large size, fractured and hollow structures irrespective of the type of dopant. The calcined BaTiO 3 powders with and without dopants had nanometre sizes after a simple milling by hand using an agate mortar. The mean size of La-doped BaTiO 3 powders measured from the transmission electron microscope (TEM) images was 38 nm at a calcination temperature of 700 °C. The mean crystallite sizes of the doped and undoped BaTiO3 powders changed from 20 to 33 nm according to the type of dopant at a calcination temperature of 700 °C. An effective grain growth inhibition took place with the doped BaTiO3 ceramics. The average grain sizes of La and Eu-doped BaTiO3 ceramics were each 380 and 400 nm at a sintering temperature of 1280 °C.
KW - Barium titanate
KW - Nano particle
KW - Spray pyrolysis
UR - http://www.scopus.com/inward/record.url?scp=48749122102&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=48749122102&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:48749122102
VL - 9
SP - 307
EP - 310
JO - Journal of Ceramic Processing Research
JF - Journal of Ceramic Processing Research
SN - 1229-9162
IS - 3
ER -