Process for producing a dielectric ceramic

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

H - Electricity

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H01B 3/12 (2006.01) C04B 35/00 (2006.01) C04B 35/495 (2006.01) C04B 35/64 (2006.01) H01G 4/12 (2006.01)

Patent

CA 2003027

ABSTRACT OF DISCLOSURE Process for producing a dielectric ceramic A process for producing a dielectric ceramic comprising a first heat-treating substep comprising heating said formed product up to a temperature of from 1,500 to 1,700°C at a rate of from 100 to 1,600°C/min. and thereafter maintaining the formed product at the temperature for at least one minute, and a second heat-treating substep comprising maintaining the product at a temperature of from 1,200 to 1,600°C for not less than 10 minutes. This process makes it possible to control the dielectric characteristics, such as resonant frequency temperature property of a dielectric ceramic by changing only the conditions of heat treatment without changing the composition, and the ceramic is useful in high frequency use.

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