Abstract
We report the synthesis and characterization of BaTiO3 (BT)-based high dielectric compositions that are promising for Y5V-type multilayer ceramic capacitors. A solid solution with a nominal composition (1-x)BaTiO3-xBa(Cu1/3Nb2/3)O3 (BCN) (x=0, 0.025) was synthesized by conventional mixed oxide route, followed by compositional modification with varying concentration of Sn, as given by the formulation: 0.975 BaTi1-ySnyO3-0.025 Ba(Cu1/3Nb2/3)O3 (y=0.05, 0.06, 0.075, 0.1). Room-temperature (RT) X-ray diffraction patterns showed a decrease in the tetragonality of BT after modifying with BCN (BTBCN). Modifications with Sn lead to a further decrement in tetragonality and the RT structure became cubic at 6.0 at.% doping level. The decrement in tetragonality was accompanied by lowering of Curie temperature (Tc). BTBCN doped with 6 and 7.5 at.% Sn were found to exhibit diffuse phase transition accompanied by a high dielectric constant ≥7000, a low loss tangent ≤1% and a grain size in the submicrometer regime (≤1 μm). © 2010 The American Ceramic Society.
| Original language | English |
|---|---|
| Pages (from-to) | 1225-1228 |
| Journal | Journal of the American Ceramic Society |
| Volume | 93 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 2010 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Funding
This work was financially supported by National Science Foundation (NSF) and Korea Institute of Materials Science (KIMS).
Fingerprint
Dive into the research topics of 'High dielectric composition in the system sn-modified (1-x)BaTiO 3-xBa(Cu1/3Nb2/3)O3, x=0.025 for multilayer ceramic capacitors'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver