Electrical properties of MLCCs of Mg/Dy/Si oxides coated BaTiO3 particles prepared by thermal hydrolysis method
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To improve the electrical properties of multilayer ceramic capacitors, triple (Mg/Dy/Si) oxides coating on the surfaces of 150-nm BaTiO3 (BT) particles was conducted by using the thermal hydrolysis method. Multi-layer (5 layers) ceramic capacitors(MLCCs) of triple oxides coated BT (TOBT) particles were obtained by using green sheet process and their electricalproperties were measured. The MLCCs of TOBT particles gave a better stable dielectric constant and dissipation factor forthe sintering temperature compared with those of the reference specimen prepared by using mixing process. In addition, astable temperature coefficient of capacitance (TCC) was obtained. The morphology and homogeneity of TOBT particles weremeasured by using scanning transmission electron microscope-high angle annular dark field (STEM-HAADF) and energydispersive X-ray spectroscopy (EDX).
Abstract
To improve the electrical properties of multilayer ceramic capacitors, triple (Mg/Dy/Si) oxides coating on the surfaces of 150-nm BaTiO3 (BT) particles was conducted by using the thermal hydrolysis method. Multi-layer (5 layers) ceramic capacitors(MLCCs) of triple oxides coated BT (TOBT) particles were obtained by using green sheet process and their electricalproperties were measured. The MLCCs of TOBT particles gave a better stable dielectric constant and dissipation factor forthe sintering temperature compared with those of the reference specimen prepared by using mixing process. In addition, astable temperature coefficient of capacitance (TCC) was obtained. The morphology and homogeneity of TOBT particles weremeasured by using scanning transmission electron microscope-high angle annular dark field (STEM-HAADF) and energydispersive X-ray spectroscopy (EDX).
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