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US 2022/0177371 A1Published application
Dielectric ceramics, method for preparing the same, and multilayered electrionic component comprising the same
AssigneeKorea Advanced Institute of Science and Technology
InventorsSung-Yoon CHUNG, Ji-Sang AN, Hae Seung LEE
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Abstract
Disclosed are a dielectric ceramic includes a plurality of crystal grain bulks including a ceramic, and a grain boundary between the plurality of crystal grain bulks, wherein a dopant is segregated in the grain boundary.
Claims18
A dielectric ceramic, comprising
- a plurality of crystal grain bulks including a ceramic represented by Chemical Formula 1, and
- a grain boundary between the plurality of crystal grain bulks,
- wherein a dopant is segregated at the grain boundary:
- ABO3 [Chemical Formula 1]
- wherein, in Chemical Formula 1,
- A necessarily includes Ba and further includes Ca, Sr, or a combination thereof, and
- B necessarily includes Ti and further includes Zr, Hf, Sn, or a combination thereof.
4 more elements
A method of preparing a dielectric ceramic, comprising:
- preparing a crystallized ceramic powder;
- mixing a dopant precursor with the crystallized ceramic powder to prepare a mixture;
- and
- sintering the mixture at a temperature of less than or equal to about 1300° C.
1 more element
Dependencies are inferred from the claim text.