Fine Lead-Zirkonium-Titanates and Zirconium-Titanates and method of production using Titaniumdioxide hydrate particles with a specific surface >50 m^2/g

Preparation of zirconium titanate (I) or lead zirconate titanate (II) comprises reacting lead and zirconium compounds with titanium dioxide particles having a BET-surface of more than 50 m 2>/g. Independent claims are also included for: (1) a preparation comprising titanium oxide hydrate particle...

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Bibliographic Details
Main Authors AUER, GERHARD, GUENNEL, HORST
Format Patent
LanguageEnglish
French
German
Published 14.06.2006
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
CONCRETE
INORGANIC CHEMISTRY
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:Preparation of zirconium titanate (I) or lead zirconate titanate (II) comprises reacting lead and zirconium compounds with titanium dioxide particles having a BET-surface of more than 50 m 2>/g. Independent claims are also included for: (1) a preparation comprising titanium oxide hydrate particles with a BET-surface of more than 50 m 2>/g and a zirconium compound, where the molar ratio of titanium and zirconium is 0.75 and 0.90; (2) (I) and (II) prepared by the above method; (3) a microelectronic element comprising (II); and (4) a method for preparing a microelectronic element comprising grinding (II), pressing to a green body and sintering.
Bibliography:Application Number: EP20040029439