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Linear dielectric materials are ideal options for energy storage application due to the typical high energy storage efficiency and breakdown strength. In the present work, pore free Ca0.6Sr0.4TiO3 (CST) ceramics with various amounts of Mn dopants (0%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 1.0%, 1.5%, 2.0%) were prepared via solid state reaction method. P-E curves were measured under a temperature range of...
Abstract—(Ba0.4Sr0.6)TiO3 (BST) ceramics with various grain sizes (0.3–3.4 μm) were synthesized by the oxalate coprecipitation method and prepared by plasma activated sintering and conventional solid-state sintering process. The effect of grain boundary on the energy storage properties and the dielectric relaxation characteristics of BST paraelectric ceramics (Curie point ≈ −67°C) with various grain...
(Ba0.4Sr0.6)TiO3 (BST) paraelectric ceramics (Tc ≈ −67 °C) with various grain sizes (0.6–1.8 μm) were synthesized by oxalate co-precipitation method and prepared by conventional solid-state sintering process. With decreasing grain sizes, the dielectric breakdown strength increases gradually. Based on the conductivity activation energy analysis, it was found that the larger grain boundary density plays...
BaTiO3-based MLCC materials were limited for high temperature applications (temperature range up to 200°C), due to their low Curie temperatures. The addition of Na0.5Bi0.5TiO3(NBT) component in BaTiO3(BT) based ceramics was found to increase the Curie temperature, without sacrificing the dielectric constant. The Curie temperature was reported to increase from 125°C to 156°C with addition up to 10mol%,...
The interfacial reaction in Cu/Sn/Cu fine pitch interconnects during soldering at 250 °C was investigated in the present work. The morphological evolution and growth kinetics of the interfacial intermetallic compounds (IMCs) were studied. Cu6Sn5 scallops formed at the Sn/Cu interface and ripened with increasing reaction time. The dependence of average grain number on reaction time t followed t−0.70...
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