- Tytuł:
- Effect of Sb and MnO2-Doping on Phase Transitions, Crystal Structure, Thermal, Dielectric, Ferroelectric and Piezoelectric Properties of Na0.5K0.5NbO3 Ceramics
- Autorzy:
-
Suchanicz, J.
Faszczowy, I.
Czaja, P.
Kusz, J.
Zubko, M. - Powiązania:
- https://bibliotekanauki.pl/articles/354339.pdf
- Data publikacji:
- 2018
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
Na0.5K0.5-NbO3-based ceramics
structural properties
ferroelectric properties
dielectric properties
piezoelectric properties - Opis:
- Lead-free ceramics of Na0.5 K0.5 Nb1-x Sbx O3 (NKNS) and Na0.5 K0.5 Nb1-x Sbx O3 + 0.5 mol%MnO2 (NKNS + 0.5 mol%MnO2) (0 < x < 0.06) ceramics were prepared by a conventional solid-state hot pressing method. The ceramics possess a single-phase perovskite structure with orthorhombic symmetry. Microstructural examination revealed that Mn doping of NKNS leads to improvement of densification. The cubic-tetragonal and tetragonal-orthorhombic phase transitions of NKNS shifted to higher and lower temperature, respectively after introduction of Mn ion. Besides, ferroelectric and piezoelectric properties were improved. The results were discussed in term of difference in both ionic size and electronegativity of Nb5+ and Sb5+ and improvement of densification after Mn ion doping.
- Źródło:
-
Archives of Metallurgy and Materials; 2018, 63, 2; 633-639
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł