Weyland, Florian ; Hayati, Raziye ; Novak, Nikola (2019)
Tuning of electrocaloric performance in (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 by
induced relaxor-like behavior.
In: Ceramics international, 2019 (45)
doi: 10.1016/j.ceramint.2019.03.006
Article
Abstract
Induced relaxor-like behavior is reported by addition of a sintering additive to the (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 solid solution. The effect of Bi2O3 sinter additive on microstructure is determined. The phase transition behavioris highlighted by dielectric permittivity measurements. The electrocaloric temperature change is directly measured and comparison with literature data is provided on basis of the material related cooling power. Addition of Bi2O3 drastically increases the temperature stability and an ultra-wide temperature range of over 100 K is achieved. The findings path a way to tune electrocaloric materials for optimization of properties for solid-state coolers based on the electrocaloric effect.
| Item Type: | Article |
|---|---|
| Erschienen: | 2019 |
| Creators: | Weyland, Florian ; Hayati, Raziye ; Novak, Nikola |
| Type of entry: | Bibliographie |
| Title: | Tuning of electrocaloric performance in (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 by induced relaxor-like behavior |
| Language: | English |
| Date: | 23 April 2019 |
| Publisher: | Elsevier SCI LTD, Oxford, England |
| Journal or Publication Title: | Ceramics international |
| Volume of the journal: | 2019 |
| Issue Number: | 45 |
| DOI: | 10.1016/j.ceramint.2019.03.006 |
| Abstract: | Induced relaxor-like behavior is reported by addition of a sintering additive to the (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 solid solution. The effect of Bi2O3 sinter additive on microstructure is determined. The phase transition behavioris highlighted by dielectric permittivity measurements. The electrocaloric temperature change is directly measured and comparison with literature data is provided on basis of the material related cooling power. Addition of Bi2O3 drastically increases the temperature stability and an ultra-wide temperature range of over 100 K is achieved. The findings path a way to tune electrocaloric materials for optimization of properties for solid-state coolers based on the electrocaloric effect. |
| Uncontrolled Keywords: | Electrical properties Ferroelectric properties BaTiO3 and titanates Perovskites |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials |
| Date Deposited: | 23 Apr 2019 10:46 |
| Last Modified: | 23 Apr 2019 10:46 |
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