Accession Number : ADP006653
Title : Application of Metal Alkoxides in the Synthesis of Oxides,
Corporate Author : KARPOV INST OF PHYSICAL CHEMISTRY MOSCOW (USSR)
Personal Author(s) : Yanovskaya, M. I. ; Turevskaya, E. P. ; Kessler, V. G.
Report Date : 05 APR 1991
Pagination or Media Count : 10
Abstract : Powders and thin films of the following simple and complex oxides have been obtained from metal alkoxides: M(11)TiO3 (M=Mg, Ca-Ba), MM1/3B2/3O3 (M=Sr,Ba,M'=Mg-Zn; B=Nb,Ta); MNbO3(M=Li,Na); ZrTiO4; PbTiO3; PST, PLZT-materials; M2BO4 (M=Li,Na; B=Mo,W), Bi2BO6(B=Mo,W); Li sub x WO3, WO3, MoO3, Bi2O3-WO3(solid solutions), YFeO3,Y3Fe5O12; YBa2Cu3O7-x; Bi2Sr2CaCu2Ox; Bi2Sr2Ca2Cu3Ox. For synthesis of metal alkoxides and solutions containing two or more elements electrochemical technique (the anodic dissolution of metals in alcohols) has been used. Analysis of different examples emphasises that considerable attention in sol-gel chemistry of oxides should be paid to decomposition of M(OR)n with elimination of ether and formation of oxoalkoxides, containing M-0-M' bonds - the basis of future oxide phases.
Descriptors : *FERROELECTRIC MATERIALS, *ORGANOMETALLIC COMPOUNDS, DECOMPOSITION, ELIMINATION, ETHERS, GELS, METALS, OXIDES, POWDERS, SYNTHESIS, THIN FILMS, USSR, TITANATES, BORATES, ALKOXY RADICALS, TUNGSTEN OXIDES, SYNTHESIS(CHEMISTRY).
Subject Categories : Electricity and Magnetism
Ceramics, Refractories and Glass
Distribution Statement : APPROVED FOR PUBLIC RELEASE