Low temperature densification of PZT ceramics

Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...

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252 629, C04B 3546, C04B 3548

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active

042832284

ABSTRACT:
Addition of from about 0.1 to about 6.0% by weight of V.sub.2 O.sub.5 to (PZT)lead zirconate-lead titanate powder promotes rapid densification at temperatures below 1000.degree. C. and eliminates the need for PbO atmosphere control. Densification to greater than 98% of theoretical density is achieved with firing times as short as 1-5 minutes. Dielectric properties depend upon the amount of V.sub.2 O.sub.5 added and upon the microstructure developed, but in general are equivalent to those reported for conventional PZT compositions.

REFERENCES:
patent: 3502913 (1970-03-01), Osada
patent: 3532628 (1970-10-01), Watanabe et al.
patent: 3654160 (1972-04-01), Ohno et al.
patent: 3963630 (1976-06-01), Yonezawa
patent: 4152280 (1979-05-01), Arendt et al.

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