Metaalniobaten en of -tantalaten, werkwijze voor de bereiding daarvan, alsmede de verdere verwerking daarvan tot perovskieten

Highly reactive metal niobates and/or metal tantalates of the general formula Me(II)A2O6 or Me(III)AO4, a method for the preparation thereof, their further processing to form perovskites of the general formula X(B'B'')O3 wherein X signifies Pb and/or Ba, B' signifies Mg, Fe, Co,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FALKO SCHLENKRICH, KARLHEINZ REICHERT
Format:	Patent
Sprache:	dut
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CABLES CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F COMPOUNDS THEREOF CONCRETE CONDUCTORS ELECTRICITY INORGANIC CHEMISTRY INSULATORS LIME, MAGNESIA METALLURGY NON-METALLIC ELEMENTS REFRACTORIES SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	Highly reactive metal niobates and/or metal tantalates of the general formula Me(II)A2O6 or Me(III)AO4, a method for the preparation thereof, their further processing to form perovskites of the general formula X(B'B'')O3 wherein X signifies Pb and/or Ba, B' signifies Mg, Fe, Co, Ni, Cr, Mn, Cd, Ti, Zr and/or Zn and B'' signifies Nb and/or Ta, as well as these perovskites are provided through the present invention. An additive of Li, Na and/or K is provided to the niobates/tantalates in 0.1 to 20 mol-%.