Microstructural, structural and electrical properties of bilayered BaZr_0.05Ti_0.95O₃/Ba_0.75Sr_0.25TiO₃ ceramics

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• 作者：Antonio Guerreiro Serrano ; André ; Luis Bonaventura ; Renato Boschilia Junior ; Eduardo Antonelli ; ^{antonelli@unifesp.br} ; ^{antonelli.eduardo@gmail.com}
• 关键词：Ceramics ; Multilayers ; Impedance spectroscopy ; Dielectric properties ; Electrical properties
• 刊名：Materials Research Bulletin
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：87
• 期：Complete
• 页码：34-39
• 全文大小：2267 K
• 卷排序：87

文摘

Bilayered ceramics are sintered without cracks and with high densities. Different shrinkage results in an abnormal grain growth near to the interface. The permittivity behaviour of the composite is modelled by the mixture rule. The composite resistance cannot be predicted only from the data of pure samples. The interface effect in resistivity is modelled by equivalent circuits.