Reactions taking place during the sol-gel processing of PLZT
- Univ. of Ljubljana, Jamova (Slovenia)
PLZT gels were prepared from lead acetate hydrate, lanthanum acetate hydrate, titanium isopropoxide and zirconium n-propoxide in methoxyethanol by the sol-gel method. For the purpose of the present study HNMR and GLC analyses were performed for quantitative determination of the volatile reaction products formed during the sol preparation. It was found that Pb and La acetates partly reacted with methoxyethanol in the first step of sol preparation. The results also indicated that Zr and Ti propoxides reacted with the acetates during refluxing. In addition, significant alcoholysis of Ti and Zr propoxides also occurred. On the basis of the results the extent of precursor conversion was calculated.
- OSTI ID:
- 6516354
- Journal Information:
- Materials Research Bulletin; (United States), Journal Name: Materials Research Bulletin; (United States) Vol. 28:4; ISSN MRBUAC; ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ACETATES
CARBOXYLIC ACID SALTS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
LANTHANUM COMPOUNDS
LEAD COMPOUNDS
OXYGEN COMPOUNDS
PLZT
PRECURSOR
RARE EARTH COMPOUNDS
SOL-GEL PROCESS
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YIELDS
ZIRCONATES
ZIRCONIUM COMPOUNDS