PZT ceramic compositions having reduced sintering temperatures a

Details PZT ceramic compositions having reduced sintering temperatures a PZT ceramic compositions having reduced sintering temperatures a

1993-09-16

1995-07-18

Walsh, Donald P.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Metal and nonmetal in final product

419 10, 419 19, 419 32, 419 46, B22F 310

Patent

active

054339170

ABSTRACT:
Process for producing novel fluxed PZT dielectric ceramic compositions having sintering temperatures below about 1000.degree., so as to be non-reactive with electrode layers when co-fired therewith. The PZT is sintered with an effective amount of an eutectic mixture of CuO and an oxide of an alkaline earth metal, preferably barium oxide and/or strontium oxide, to reduce the sintering temperature of the PZT composition below about 1000.degree. C. Dopant such as manganese oxide may be added to reduce the dielectric losses.

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