Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1525077 | Materials Chemistry and Physics | 2010 | 4 Pages |
Abstract
In this work, we report the preparation of lead titanate (PT) nanoceramics (with an average grain size of â¼200 nm in diameter) by using hydrothermal PT nanoparticles as start materials and characterized the dielectric and ferroelectric properties. The dielectric constant of the ceramic was found to be â¼180 (at 1 kHz) at room temperature and reached a maximum value of 8330 at â¼490 °C, suggesting that the Curie temperature of the nanoceramics is consistent with the known value of PT crystals. Ferroelectric domains and hysteresis loops were obtained through piezoelectric force microscopy measurements, which provide direct and clear evidence for the ferroelectricity in the nanoceramic samples.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Yongming Hu, Haoshuang Gu, Wanping Chen, Yu Wang,