Low-losses, highly tunable Ba0.6Sr0.4TiO3∕MgO composite
作者： U.-Chan Chung , C. Elissalde , M. Maglione , C. Estournès , M. Paté
DOI: 10.1063/1.2837621
关键词: Dielectric 、 Ceramic 、 Spark plasma sintering 、 Sintering 、 Ferroelectricity 、 Dielectric loss 、 Composite material 、 Ferroelectric ceramics 、 Curie temperature 、 Materials science
摘要: Spark plasma sintering (SPS) is an efficient tool to obtain highly densified ferroelectric-dielectric ceramic composites with clean interfaces and tunable properties. Dielectric MgO ferroelectric Ba0.6Sr0.4TiO3 (BST) were combined in two-dimensional multilayer three-dimensional random powders design. Their unmodified BST Curie temperature proves the suppression of interdiffusion while dielectric losses are below 0.5% tunability 40% at room temperature. The pure similar densities (>95%) obtained, owing reliable comparison their Such SPS ceramics can be used as experimental input for simulation potential candidates high frequency applications.
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