Dielectric ceramic composition

Details Dielectric ceramic composition Dielectric ceramic composition

H - Electricity

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H01G 4/12 (2006.01) C04B 35/499 (2006.01)

Patent

CA 1251036

- 1 - Abstract: The invention provides a dielectric ceramic composition consisting essentially of Pb(Ni1/3Nb2/3)O3, PbTiO3, Pb(Zn1/2W1/2)O3 and Pb(Cu1/3Nb2/3)O3. The mole percentages of the four components are as follows: Pb(Ni1/3Nb2/3)O3 50.0 to 75.0 mole % PbTiO3 20.0 to 35.0 mole % Pb(Zn1/2W1/2)O3 0.5 to 15.0 mole % Pb(Cu1/3Nb2/3)O3 1.0 to 10.0 mole % The dielectric ceramic composition may further contain, as an additive, manganese in an amount of not more than 0.5 mole % in terms of MnO2. The composition possesses a high dielectric constant of not less than 8000 and a low sintering temperature of 900 to 1000°C.

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