Electrical properties of sol-gel derived PZT/WO3 ceramics
PZT/xWO3 powders were prepared from the powders synthesized by a modified triol sol-gel method. XRD and TEM results suggested that fully crystallized powders were obtained at the calcination temperature of 600°C for 4 h. A reaction between PZT and WO3 powders seemed more pronounced with increasing W...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2014
|
| Online Access: | http://www.scopus.com/inward/record.url?eid=2-s2.0-77949290636&partnerID=40&md5=a6b1b5d2f529171f66d16b3f900f2343 http://cmuir.cmu.ac.th/handle/6653943832/5752 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Chiang Mai University |
| Language: | English |
| Summary: | PZT/xWO3 powders were prepared from the powders synthesized by a modified triol sol-gel method. XRD and TEM results suggested that fully crystallized powders were obtained at the calcination temperature of 600°C for 4 h. A reaction between PZT and WO3 powders seemed more pronounced with increasing WO3 content. To prepare PZT/xWO3 ceramics, the powders were pressed and sintered at 1100°C for 6 h. Phase characterization by XRD indicated that the concentration of WO3 affected lattice parameters and reduced c/a ratios, especially for high content of WO3. SEM images showed that an addition of only 0.5 wt% WO3 significantly decreased grain size of the ceramics. Density of the ceramics, however, did not significantly depend on WO3 concentration below 1 wt%. Addition of suitable amount of WO3 enhanced ferroelectric properties and reduced high-temperature dielectric loss of PZT ceramic. Copyright © Taylor & Francis Group, LLC. |
|---|