Preparation of PZT powders from metal alkoxides

Fine powders of PZT, [Zr]/[Ti] = 53/47 and 55/45 in mol ratio, were prepared from Pb(isoC 3H 7O) 2, Zr(nC 4H 9O) 4 and Ti(isoC 3H 7O) 4 through simultaneous hydrolysis in alcohol solutions. Spherical and X-ray-amorphous powders were obtained by hydrolysis in ethanol solution at temperatures below...

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Bibliographic Details
Published in:Journal of non-crystalline solids 1990-05, Vol.121 (1), p.404-406
Main Authors: Hirashima, Hiroshi, Onishi, Eiji, Nakagawa, Michihiro
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Electrotechnical and electronic ceramics
Exact sciences and technology
Technical ceramics
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Summary:Fine powders of PZT, [Zr]/[Ti] = 53/47 and 55/45 in mol ratio, were prepared from Pb(isoC 3H 7O) 2, Zr(nC 4H 9O) 4 and Ti(isoC 3H 7O) 4 through simultaneous hydrolysis in alcohol solutions. Spherical and X-ray-amorphous powders were obtained by hydrolysis in ethanol solution at temperatures below 76°C. After calcination at 400°C for 72 h, diffraction peaks of PZT were observed. During the calcination, an intermediate phase, cubic Pb 2Ti 2O 6, was found. When the hydrolysis was carried out in n-propanol at 95°C, irregular shaped particles were obtained. After drying at 90°C, diffraction peaks of PZT and of the intermediate phase were observed.
ISSN:0022-3093
1873-4812
DOI:10.1016/0022-3093(90)90166-J