properties of Electrooptic (Pb, La)(zr, ti)o_3 Ceramics fabricated by partial coprecipitation method

概要

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Electrooptic ceramics of (Pb, La)(Zr, Ti)O_3 were fabricated by a combination of the partial-coprecipitation and doctor-blade methods. The PLZT powder, with particles of submicron size that were excellently dispersed, was prepared by (Zr, Ti)O_2 solid-solution powder and PbO and La_20O_3 oxide powders. The large-scale PLZT ceramics with the dimension of 10 × 10 ∼ 20 cm and thickness of 1.5 mm were molded by the doctor-blade method and then conventionally sintered at 1200 ∼ 1250℃ for 20 ∼ 60 h under the controlled condition of PbO and oxygen atmosphere. The fabricated PLZT ceramics with 0.5 mm thickness showed the transmittance of 65 ∼ 67% in the range of wavelength greater than 600 nm, and the quadratic electrooptical coefficient of 4.5 × 10^<-16> O^2/V^2.
社団法人応用物理学会の論文
1992-09-30