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Dielectric body, multilayer ceramic capacitor, manufacturing method of dielectric body, and manufacturing method of multilayer ceramic capacitor
A dielectric body includes a plurality of crystal grains of which a main component is barium titanate, and an additive including Zr, Eu and Mn. At least one of the plurality of crystal grains has a core-shell structure having a core and a shell. A Zr/Ti atomic concentration ratio is 0.02 or more and 0.10 or less. An Eu/Ti atomic concentration ratio is 0.001 or more and 0.03 or less. A Mn/Ti atomic concentration ratio is 0.005 or more and 0.05 or less. A total atomic concentration of the one or more rare elements is smaller than an atomic concentration of Eu when the dielectric body has the one or more rare earth elements. A median diameter of the plurality of crystal grains is 200 nm or more and 400 nm or less.
Dielectric body, multilayer ceramic capacitor, manufacturing method of dielectric body, and manufacturing method of multilayer ceramic capacitor
A dielectric body includes a plurality of crystal grains of which a main component is barium titanate, and an additive including Zr, Eu and Mn. At least one of the plurality of crystal grains has a core-shell structure having a core and a shell. A Zr/Ti atomic concentration ratio is 0.02 or more and 0.10 or less. An Eu/Ti atomic concentration ratio is 0.001 or more and 0.03 or less. A Mn/Ti atomic concentration ratio is 0.005 or more and 0.05 or less. A total atomic concentration of the one or more rare elements is smaller than an atomic concentration of Eu when the dielectric body has the one or more rare earth elements. A median diameter of the plurality of crystal grains is 200 nm or more and 400 nm or less.
Dielectric body, multilayer ceramic capacitor, manufacturing method of dielectric body, and manufacturing method of multilayer ceramic capacitor
TSUSHIMA YUJI (author) / MORITA KOICHIRO (author)
2024-04-02
Patent
Electronic Resource
English
European Patent Office | 2024
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