Published January 1, 2024
| Version v1
Journal article
Open
Electrocaloric behaviour of tape cast and grain oriented NBT-KBT ceramics
Creators
- 1. Eskisehir Tech Univ, Dept Mat Sci & Engn, TR-26555 Eskisehir, Turkiye
- 2. Izmir Inst Technol, Dept Mat Sci & Engn, TR-35430 Urla, Izmir, Turkiye
- 3. Entekno Corp, TR-26004 Eskisehir, Turkiye
- 4. Tech Univ Darmstadt, Dept Mat & Earth Sci, Nonmet Inorgan Mat, Peter Grunberg Str 2, D-64287 Darmstadt, Germany
Description
We have investigated the effects of grain orientation and tape casting process on the electrocaloric properties of 0.82Na(0.5)Bi(0.5)TiO(3)-0.18 K0.5Bi0.5TiO3 (0.82NBT-0.18KBT) ceramics at the Morphotropic Phase Boundary (MPB), using direct and indirect measurements. We observe a larger electrocaloric response for the template-free ceramics compared to 7 and 10 wt% template containing ones, suggesting that grain orientation along rhombohedral < 100 > does not improve the electrocaloric response. Indirect measurements yielded a large adiabatic temperature change of around 3 K under an electric field of 50 kV/cm, which is significantly higher than 0.9 K reached at a lower electric field of 40 kV/cm using the direct measurement.
Files
bib-ae82ff40-1a5b-48f4-90aa-e0976f76e50a.txt
Files
(246 Bytes)
| Name | Size | Download all |
|---|---|---|
|
md5:c55bbcd35a65c70f58b254f11eee63ab
|
246 Bytes | Preview Download |