Method of preparing oriented, polycrystalline superconducting ceramic oxides

A process for the preparation of oriented, ceramic oxides from a bilayer structure of a polycrystalline superconducting ceramic oxide and a second ceramic oxide material having a lower melting point than the superconducting ceramic oxide. The process comprises the steps of preparing (32) a substrate...

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Bibliographische Detailangaben
Hauptverfasser:	YEE, DENNIS SEK-ON, MACHLIN, EUGENE SOLOMON, ROY, RONNEN ANDREW, CUOMO, JEROME JOHN, GUARNIERI, CHARLES RICHARD
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CABLES 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 CRYSTAL GROWTH ELECTRICITY INORGANIC CHEMISTRY INSULATORS LIME, MAGNESIA METALLURGY NON-METALLIC ELEMENTS PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE REFINING BY ZONE-MELTING OF MATERIAL REFRACTORIES SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE SINGLE-CRYSTAL-GROWTH SLAG TREATMENT OF NATURAL STONE UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL
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Beschreibung
Zusammenfassung:	A process for the preparation of oriented, ceramic oxides from a bilayer structure of a polycrystalline superconducting ceramic oxide and a second ceramic oxide material having a lower melting point than the superconducting ceramic oxide. The process comprises the steps of preparing (32) a substrate, depositing the superconducting ceramic oxide (36, 40) and second ceramic oxide (34, 38) in alternate layers, and heat treating (42) the resulting composite structure to obtain an oriented structure whereby the c-axes of the unit cells of the crystallites are predominantly normal to the surface of the substrate.