Dielectric ceramic composition for multi-layer ceramic capacitor for use in extreme environments
AssigneeSamhwa Capacitor Co., Ltd.
InventorsYoung Joo Oh, Jung Rag Yoon, Chang Ho Lee
Life of this patent
Estimating the term…
Abstract
A dielectric ceramic composition for multi-layer ceramic capacitor for use in extreme environments is formed by mixing a main compos it ion and a composite oxide for low-temperature sintering, where the main composition includes 96.0 to 99.0 wt. % of BaTiO3 and 1.0 to 4.0 wt. % of Nb2O5 and Co3O4 as an additive. The main composition is formed by per forming a heat treatment for synthesis to form a core-shell structure having the BaTiO3 as a core and the Nb2O5 and Co3O4 covering the sur face of the BaTiO3. The composite oxide for low-temperature sintering is at least one selected from BaV2O6, Ba3V4O13 and Ba4V2O9.
Claims7
A dielectric ceramic composition for multi-layer ceramic capacitor for use in extreme environments,
- the dielectric ceramic composition being formed by mixing a main composition and a composite oxide for low-temperature sintering,
- wherein the main composition comprises 96.0 to 99.0 wt. % of BaTiO3 and 1.0 to 4.0 wt. % of Nb2O5 and Co3O4 as an additive, the main composition being formed by performing a heat treatment for synthesis to form a core-shell structure having the BaTiO3 as a core and the Nb2O5 and Co3O4 covering the surface of the BaTiO3,
- wherein the composite oxide for low-temperature sintering is at least one selected from BaV2O6, Ba3V4O13 and Ba4V2O9.
Dependencies are inferred from the claim text.