Dielectric properties of BST/MZO ceramic composites

Abstract

Ba 0.6 Sr 0.4 TiO 3 /Mg 1−x Zn x O (MZO, x = 0, 0.05, 0.10, 0.15 and 0.20) ceramic composites were prepared by traditional ceramic processing. The crystal structure, fracture surface morphology, and dielectric properties were investigated. The samples with x = 0, 0.05 and 0.10 exhibited favorable sintering behavior, and homogeneous diphase microstructure was obtained. Nevertheless, the microstructure of the samples with x = 0.15 and 0.20 was inhomogeneous and abnormal grain growth could be observed, and the abnormal grain growth induced the degradation of dielectric strength. The sample with x = 0.10 has relatively low dielectric loss (1.26×10 −3 ) and the optimal FOM value (about 174).tunability, dielectric property, composites BST

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“…The field of functional ceramics is driven by applications in many key technologies, including microelectronics, communications, energy conversion, and automation [12][13][14][15][16][17][18][19][20][21][22]. The focus of research is on the understanding of the structure-processing-property relationships.…”