Effect of oxygen treatment on structure and electrical properties of Mn-doped Ca 0.6 Sr 0.4 TiO 3 ceramics
Effect of oxygen treatment on structure and electrical properties of Mn-doped Ca 0.6 Sr 0.4 TiO 3 ceramics
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DOI：
10.1016/j.jeurceramsoc.2018.01.027
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发表时间：
2018-06
影响因子：
5.7
通讯作者：
Lin Zhang;Z. Yao;M. Lanagan;H. Hao;Juan Xie;Qi Xu;Mengxue Yuan;M. Sarkarat;M. Cao;Hanxing Liu
中科院分区：
文献类型：
--
作者：
Lin Zhang;Z. Yao;M. Lanagan;H. Hao;Juan Xie;Qi Xu;Mengxue Yuan;M. Sarkarat;M. Cao;Hanxing Liu
Different oxygen treatment methods, including O2and N2annealing, were conducted on Ca0.6Sr0.4TiO3(CST) ceramics with varying Mn content (0 mol%, 0.5 mol% and 2.0 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 O2resulted in increased grain boundary resistance, while in N2led 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.
