Process for producing a dielectric ceramic

Details Process for producing a dielectric ceramic Process for producing a dielectric ceramic

1990-06-12

1991-08-13

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Titanate, zirconate, stannate, niobate, or tantalate or...

501134, 501136, 264 66, C04B 3546

Patent

active

050396374

ABSTRACT:
A process for producing a dielectric ceramic comprising a firing step comprises the substeps of heating a calcined product rapidly up to a temperature of from 1,500.degree. to 1,700.degree. C. and thereafter sintering the product at the temperature, and heating the product thus heat-treated through said first heat-treating substep at about 1,200.degree. C. to 1,600.degree. C. for not less than 10 minutes. It is possible to prepare a dielectric ceramic with a desired temperature properties of the resonant frequency.

REFERENCES:
patent: 4121941 (1978-10-01), Kawashima et al.
patent: 4148853 (1979-04-01), Schuber
patent: 4264548 (1981-04-01), Ezis
patent: 4477401 (1984-10-01), Hagemann et al.
patent: 4487842 (1984-12-01), Nomura et al.
patent: 4626396 (1986-12-01), Wada et al.
patent: 4897374 (1990-01-01), Matsumoto et al.
patent: 4918035 (1990-04-01), Inoue et al.

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