| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7898347 | Journal of the European Ceramic Society | 2018 | 7 Pages |
Abstract
Different oxygen treatment methods, including O2 and N2 annealing, were conducted on Ca0.6Sr0.4TiO3 (CST) ceramics with varying Mn content (0â¯mol%, 0.5â¯mol% and 2.0â¯mol%). Structure characterization, including XRD and SEM, indicated the minimal effect of annealing on the microstructure. Grain boundaries were found to be sensitive to oxygen treatments, and annealing in O2 resulted in increased grain boundary resistance, while in N2 led to the opposite result. The insulating properties of bulk ceramics were found to be dominated by grain boundaries. Both the concentration and mobility of oxygen vacancies were confirmed to affect the energy storage properties to some extent in this work.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Lin Zhang, Zhonghua Yao, Michael T. Lanagan, Hua Hao, Juan Xie, Qi Xu, Mengxue Yuan, Maryam Sarkarat, Minghe Cao, Hanxing Liu,