Abstract
Sodium-ion conductive Li+-stabilized Na-β″-alumina was synthesized by calcinating a mixture of AlO(OH), Na2CO3 and Li2CO3. For additional improvement of the characteristics the ceramic powder was doped with various amounts of TiO2 and sintered at 1400, 1500 and 1600 °C. The effects of doping and sintering temperature were evaluated by measuring fracture strength, ionic conductivity, density, morphology and phase composition. The conductivity was raised from 0.2 to 0.3 S cm−1 at 300 °C by adding 1.5 wt.-% TiO2 to the Na-β″-alumina. By adding 1 wt.-% of TiO2 to the electrolyte material, the characteristic fracture strength σ0 was increased from 188 to 277 MPa. Aside from that, changes in the microstructure, due to doping were observed. The altered properties of the ceramic were mainly assigned to changes in the microstructure.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
