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Title: Reactions taking place during the sol-gel processing of PLZT

Abstract

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.

Authors:
; ;  [1]
  1. Univ. of Ljubljana, Jamova (Slovenia)
Publication Date:
OSTI Identifier:
6516354
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin; (United States)
Additional Journal Information:
Journal Volume: 28:4; Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; PLZT; SOL-GEL PROCESS; ACETATES; CHEMICAL REACTION YIELD; CHEMICAL REACTIONS; LANTHANUM COMPOUNDS; LEAD COMPOUNDS; PRECURSOR; TITANATES; ZIRCONATES; CARBOXYLIC ACID SALTS; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YIELDS; ZIRCONIUM COMPOUNDS; 360201* - Ceramics, Cermets, & Refractories- Preparation & Fabrication; 400201 - Chemical & Physicochemical Properties

Citation Formats

Beltram, T, Kosec, M, and Stavber, S. Reactions taking place during the sol-gel processing of PLZT. United States: N. p., 1993. Web. doi:10.1016/0025-5408(93)90063-J.
Beltram, T, Kosec, M, & Stavber, S. Reactions taking place during the sol-gel processing of PLZT. United States. doi:10.1016/0025-5408(93)90063-J.
Beltram, T, Kosec, M, and Stavber, S. Thu . "Reactions taking place during the sol-gel processing of PLZT". United States. doi:10.1016/0025-5408(93)90063-J.
@article{osti_6516354,
title = {Reactions taking place during the sol-gel processing of PLZT},
author = {Beltram, T and Kosec, M and Stavber, S},
abstractNote = {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.},
doi = {10.1016/0025-5408(93)90063-J},
journal = {Materials Research Bulletin; (United States)},
issn = {0025-5408},
number = ,
volume = 28:4,
place = {United States},
year = {1993},
month = {4}
}