Dielectric ceramic composition

Details Dielectric ceramic composition Dielectric ceramic composition

H - Electricity

01

B

31/138

H01B 3/12 (2006.01) C04B 35/495 (2006.01) H05K 1/03 (2006.01)

Patent

CA 1338436

A dielectric ceramic composition comprising oxides containing Ba, Zn, Mg, Ni and Ta each within such a range that BaO is not less than 59.5 mol% and not greater than 61.5 mol%, ZnO is less than 10 mol%, MgO is less than 10 mol%, NiO is less than 20 mol%, Ta2O5 is not less than 19.3 mol% and less than 21 mol%. A portion of Ni is substituted with less than 0.4 mol% of Co as CoO. The dielectric ceramic composition is excellent both in di- electric constant and unload quality factor and also having stable temperature characteristics. Partial substitution of Ni with Co can lower the sintering temperature with no remarkable reduction in the unload quality factor.

611081

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