Thermomechanical and electrophysical properties of a solid electrolyte based on Na–β"-Al2O3 with t-ZrO2 additions
- Authors: Sitnikov A.I.1, Tel’nova G.B.1, Baikin A.S.1, Solntsev K.A.1
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Affiliations:
- Baikov Institute of Metallurgy and Materials Science
- Issue: Vol 2016, No 4 (2016)
- Pages: 307-312
- Section: Promising Materials and Technologies
- URL: https://journals.rcsi.science/0036-0295/article/view/170446
- DOI: https://doi.org/10.1134/S0036029516040200
- ID: 170446
Cite item
Abstract
The strength, the fracture toughness, the thermal shock resistance, and the electrical conductivity of a ceramic Na–β"-Al2O3 solid electrolyte modified by t-ZrO2 additions are studied. The influence of the reverse t-ZrO2 → m-ZrO2 transformation on the mechanical and functional properties of the ceramics is discussed. The ZrO2 addition concentration is found to affect the sodium-ion conductivity of the solid electrolyte and its activation energy. The degree of defect accumulation in the ceramics modified by 8.5 wt % t-ZrO2 is shown to decrease during a thermal shock.
About the authors
A. I. Sitnikov
Baikov Institute of Metallurgy and Materials Science
Author for correspondence.
Email: alexei.sitnikov@gmail.com
Russian Federation, Leninskii pr. 49, Moscow, 119991
G. B. Tel’nova
Baikov Institute of Metallurgy and Materials Science
Email: alexei.sitnikov@gmail.com
Russian Federation, Leninskii pr. 49, Moscow, 119991
A. S. Baikin
Baikov Institute of Metallurgy and Materials Science
Email: alexei.sitnikov@gmail.com
Russian Federation, Leninskii pr. 49, Moscow, 119991
K. A. Solntsev
Baikov Institute of Metallurgy and Materials Science
Email: alexei.sitnikov@gmail.com
Russian Federation, Leninskii pr. 49, Moscow, 119991