Method for producing a PLZT compound

Details Method for producing a PLZT compound Method for producing a PLZT compound

1987-12-16

1989-05-23

Lechert, Jr., Stephen J.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Autogenously or by activation of dry coated particles

75228, 75232, 75234, 75235, 264 66, 264332, 419 17, 419 28, 419 55, B23C 6700

Patent

active

048328936

ABSTRACT:
A method for producing PLZT generally expressed as (Pb.sub.1-x La.sub.x) (Zr.sub.1-y Ti.sub.y).sub.1-x/4 O.sub.3 (0<x.ltoreq.0.3, 0.ltoreq.y.ltoreq.1.0) comprises the steps of forming a coprecipitated body by reacting solution containing at least one of Pb, La and Ti with a zirconium-containing solution and a precipitation-forming solution, or (a) forming a solution containing at least one of Pb, La and Ti forming PLZT generally expressed as (Pb.sub.1-x La.sub.x) (Zr.sub.1-y Ti.sub.y).sub.1-x/4 O.sub.3 (0<x.ltoreq.0.3, 0.ltoreq.y.ltoreq.1.0) and a zirconium-containing solution and carrying out a hydrolysis reaction to produce a sol body, (b) drying and then presintering the coprecipitated body at a temperature of from 700.degree. to 1300.degree. C. to form a modified zirconia powder, (c) mixing the presintered body with a compound having a remaining component composition of a required PLZT composition, (d) presintering the mixture at a temperature of from 500.degree. to 1000.degree. C., (e) pressing the obtained presintered powder, and then sintering the molded powder at a temperature of from 1000.degree. to 1300.degree. C.

REFERENCES:
patent: 3862829 (1975-01-01), Brandmayr et al.
patent: 3923675 (1975-12-01), Mazdiyashi et al.
patent: 3963630 (1976-06-01), Yonezawa et al.
patent: 3997690 (1976-12-01), Chen
patent: 4027209 (1977-05-01), Maher
patent: 4061583 (1977-12-01), Murata et al.
patent: 4135224 (1979-01-01), Maher
patent: 4152280 (1979-05-01), Arendt et al.
patent: 4152281 (1979-05-01), Arendt et al.
patent: 4230589 (1980-10-01), Ogawa
patent: 4255272 (1981-03-01), Ogawa
patent: 4266265 (1981-05-01), Maher
patent: 4279866 (1980-08-01), Maher
patent: 4283228 (1981-08-01), Buchanan et al.
patent: 4293534 (1981-10-01), Arendt
patent: 4306163 (1987-11-01), Maher
patent: 4324750 (1982-04-01), Maher
patent: 4391901 (1983-07-01), Land et al.
patent: 4587225 (1986-05-01), Tsukuma et al.
patent: 4592880 (1986-06-01), Murakami
patent: 4624796 (1986-11-01), Giniewicz et al.
patent: 4626369 (1986-12-01), Walker, Jr.
patent: 4643984 (1987-02-01), Abe et al.
patent: 4696810 (1987-09-01), Shirasaki et al.
Brown, L. M., et al., "Cold-Pressing and Low-Temperature Sintering of Alkoxy-Derived PLZT"; Journal of The American Ceramic Society, vol. 55, No. 11, Nov. 1972, pp. 541-544.

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