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Title
Formkoerper auf der Basis von PZT (Pb(Zr,Ti)O3, Bleizirkonat-Bleititanat), Verfahren und Zwischenprodukt zu deren Herstellung
Date Issued
2001
Author(s)
Glaubitt, W.
Jahn, R.
Merklein, S.
Patent No
1993-4332831
Abstract
The invention relates to moulded parts, fibres and coatings based on PZT (lead zirconate-lead titanate) which are obtained by adding organic zirconium compounds of the formula Zr(OR->1 )<-4 (I) and organic titanium compounds of the formula Ti(OR->2)<-4 (II) separately or together and refer to 1 Mol of the compounds (I) plus (II) with 0 to 4 Mol of an alcohol or a mixture of alcohols of the formula R->3 -X-R->4-OH and/or R->3 -CX-R->4 -OH (IV), that the resulting mixture(s) or compounds (I) and (II) are added separately or together and related each to 1 to 3 Mol of the compounds (I) and (II) with 1 to 3 Mols of one or several carbon acids comprising 2 to 10 carbon atoms, that everything related 1 Mol of the compound (I) plus (II) is mixed with 1 to 1.5 Mol of one or several Pb(II) and/or Pb(IV) carboxylate that the mixture is subjected to a hydrolitic condensation, that the volatile constituents are removed until a compound which is solid at room temperature results, that the solid mass is heated until a highly viscous liquid is obtained, that the liquid is processed into moulded parts, fibres or coatings, and that they are heated to temperatures of at least 500 degrees Celsius
Language
de
Patenprio
DE 1993-4332831 A: 19930927