TY - JOUR
T1 -
Effects of Bi
4
Ti
3
O
12
addition on the microstructure and dielectric properties of modified BaTiO
3
under a reducing atmosphere
AU - Jain, T. A.
AU - Chen, C. C.
AU - Fung, Kuan-Zong
PY - 2009/9/1
Y1 - 2009/9/1
N2 -
The effects of Bi
4
Ti
3
O
12
addition on the microstructure and dielectric properties of Mn-modified BaTiO
3
were investigated to develop low temperature fired BaTiO
3
-based ceramics with stable temperature characteristics. The sintering temperature of Mn-doped BaTiO
3
could be reduced to 1200 °C by adding more than 1 mol% Bi
4
Ti
3
O
12
. TEM results show an apparent core-shell structure with 2 mol% Bi
4
Ti
3
O
12
addition. However, it was destroyed when the Bi
4
Ti
3
O
12
content increased from 2 to 4 mol%. The permittivity decreased and the Curie temperature shifted to higher temperature when the Bi
4
Ti
3
O
12
content increased from 0 to 3 mol%. The temperature characteristic of capacitance was very close to the EIA X8R specification when 2 mol% Bi
4
Ti
3
O
12
was added due to the presence of the core-shell grain structure and raised Curie temperature. With adequate Bi
4
Ti
3
O
12
addition, the BaTiO
3
-based system shows great potential for applications in EIA X8R-type multilayer ceramic capacitors.
AB -
The effects of Bi
4
Ti
3
O
12
addition on the microstructure and dielectric properties of Mn-modified BaTiO
3
were investigated to develop low temperature fired BaTiO
3
-based ceramics with stable temperature characteristics. The sintering temperature of Mn-doped BaTiO
3
could be reduced to 1200 °C by adding more than 1 mol% Bi
4
Ti
3
O
12
. TEM results show an apparent core-shell structure with 2 mol% Bi
4
Ti
3
O
12
addition. However, it was destroyed when the Bi
4
Ti
3
O
12
content increased from 2 to 4 mol%. The permittivity decreased and the Curie temperature shifted to higher temperature when the Bi
4
Ti
3
O
12
content increased from 0 to 3 mol%. The temperature characteristic of capacitance was very close to the EIA X8R specification when 2 mol% Bi
4
Ti
3
O
12
was added due to the presence of the core-shell grain structure and raised Curie temperature. With adequate Bi
4
Ti
3
O
12
addition, the BaTiO
3
-based system shows great potential for applications in EIA X8R-type multilayer ceramic capacitors.
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U2 - 10.1016/j.jeurceramsoc.2009.02.015
DO - 10.1016/j.jeurceramsoc.2009.02.015
M3 - Article
AN - SCOPUS:67349131278
VL - 29
SP - 2595
EP - 2601
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
SN - 0955-2219
IS - 12
ER -