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Class 505/736 - From free metal precursors


Subclass of Class 505 - Superconductor technology: apparatus, material, process
Definition: Process wherein at some stage in the recited process free
No. of patents: 32
Last issue date: 01/28/2003


NumberTitleIssue Date
6511943Synthesis of magnesium diboride by magnesium vapor infiltration process (MVIP)
A process of preparing superconducting magnesium diboride powder by heating an admixture of solid magnesium and amorphous boron powder or pellet under an inert atmosphere in a Mg:B ratio of greater than about 0.6:1 at temperatures and for time sufficient ...
01/28/2003
6295716Production and processing of (Bi,Pb) SCCO superconductors
A multicomponent powder useful in the formation of BSCCO-2223 is provided comprised of orthorhombic BSCCO-2212 and alkaline earth cuprate, without formation of undesirable secondary phases such as alkaline earth bismuthates and alkaline earth plumbates. A...
10/02/2001
5851957Oxide superconductor precursors
A composite for preparation of an oxide superconductor includes a primary alloy phase of constituent elements of a desired oxide superconductor; and a secondary phase comprising copper, the secondary phase supported by the primary alloy phase. The composi...
12/22/1998
5683969Strongly-linked oxide superconductor and a method of its manufacture
A strongly-linked polycrystalline oxide superconductor article includes an oxide superconductor selected from the group consisting 124-type and 247-type oxide superconductors having fine, highly aligned oxide superconductor grains less than 50 μm along a...
11/04/1997
5643856Preparartion of superconducting oxides and oxide-metal composites
A method of preparing a superconducting oxide by combining the metallic elements of the oxide to form an alloy, followed by oxidation of the alloy to form the oxide. Superconducting oxide-metal composites are prepared in which a noble metal phase intimate...
07/01/1997
5545613Preparation of superconducting oxides and oxide-metal composites
A method of preparing a superconducting oxide by combining the metallic elements of the oxide to form an alloy, followed by oxidation of the alloy to form the oxide. Superconducting oxide-metal composites are prepared in which a noble metal phase intimate...
08/13/1996
5476837Process for preparing superconducting film having substantially uniform phase development
A process for preparing a superconducting film, such as a thallium-barium-calcium-copper oxide superconducting film, having substantially uniform phase development. The process comprises providing an electrodeposition bath having one or more soluble salts...
12/19/1995
5472527High pressure oxidation of precursor alloys
A method for forming unsegregated metal oxide-silver composites includes preparing a precursor alloy comprising silver and precursor elements of a desired metal oxide and oxidizing the alloy under conditions of high oxygen activity selected to permit diff...
12/05/1995
5350738Method of manufacturing an oxide superconductor film
The present invention provides a method of manufacturing a high quality oxide superconductor film capable of controlling the film-forming rate and the film composition easily and forming the superconductor film safely and economically, over a wide region ...
09/27/1994
5300483Process for preparing shaped superconductor materials via nonequilibrium precursors
A method is provided for preparing a precursor of a superconductor containing atoms of oxygen, atoms of copper and atoms of at least two other metals and sufficient atoms of oxygen so that up to, but no more than, one atom of copper is in the trivalent st...
04/05/1994
5290759Process for making high temperature superconducting powders
Superconducting precursors, which can be made into metal oxide superconductors such as YBa2 Cu3 O6+x, and a process for their manufacture by the coprecipitation of 1-2-3 nitrates using inexpensive precipitating agents such...
03/01/1994
5259885Process for making ceramic/metal and ceramic/ceramic laminates by oxidation of a metal precursor
A method of preparing a laminated ceramic. The method includes preparing a precursor having at least one noble metal element component and at least two non-noble metal elements. The precursor is exposed to a first environment to form an oxidized zone havi...
11/09/1993
5252553Process for preparing a superconducting thin film of compound oxide
In order to prepare a good quality crystalline thin film of compound oxide superconductor on a silicon wafer, before the thin film of compound oxide superconductor is deposited on the silicon wafer, the silicon wafer is first heated at a temperature of hi...
10/12/1993
5221663Method for repairing an oxide superconducting connecting line
A method for producing an oxide superconducting connecting line includes initially coating a line with at least one layer of a crystalline or amorphous metal alloy forming a superconductive oxide. The line is subsequently heated to a temperature below the...
06/22/1993
5214025Method of manufacturing oxide high-temperature superconductor thin film by means of molecular-beam epitaxy
Monatomic layers each formed of a single metal are sequentially formed on a substrate using a molecular-beam epitaxy to form a multilayered metal film consisting of a plurality of types of metals, and sequentially with formation the monatomic layers, nitr...
05/25/1993
5204318Preparation of superconducting oxides and oxide-metal composites
A method of preparing a superconducting oxide by combining the metallic elements of the oxide to form an alloy, followed by oxidation of the alloy to form the oxide. Superconducting oxide-metal composites are prepared in which a noble metal phase intimate...
04/20/1993
5198412Method for making superconductor films
A process is disclosed for producing superconductor films on a variety of substrates, and more particularly a patterned superconductor film on a planar substrate. The basic process includes the steps of: 1) depositing a metal film of superconductor precur...
03/30/1993
5180707Method for synthesis of high Tc superconducting materials by oxidation and press coating of metallic precursor alloys
A superconductor oxide composite is prepared using a press coating technique. The coated layers on various substrates exhibit good adhesion, textured microstructure, and improved Jc....
01/19/1993
5157016Method for producing a superconducting article
A method for producing a superconducting article. An alloy consisting of metal elements, such as Y, Ba and Cu which are constituent elements of a superconducting compound oxide to be produced is oxidized so that a surface of the alloy is converted to the ...
10/20/1992
5102863Process for producing clad superconductive materials
A process for fabricating superconducting composite wire by the steps of placing a superconductive precursor admixture capable of undergoing a self propagating combustion in stoichiometric amounts sufficient to form a superconductive product within a meta...
04/07/1992
5102864Methods for forming complex oxidation reaction products including superconducting articles
A complex oxidation reaction product of two or more metals in an oxidized state is formed by positioning a suitable precursor metal adjacent to a permeable mass of a metal-containing compound in an oxidizing atmosphere and heating the assembly to form a b...
04/07/1992
5100870Method of making a superconducting oxide comprising contacting a melt with an oxygen-containing atmosphere
Disclosed is a broadly applicable method for making an article that, exemplarily comprises a superconductive oxide body, including a thin layer on a substrate, or powder particles. In a preferred embodiment, the method comprises forming a precursor melt a...
03/31/1992
5041420Method for making superconductor films from organometallic precursors
A process is disclosed for producing superconductor films on a variety of substrates, and more particularly a patterned superconductor film on a planar substrate. The basic process includes the steps of: 1) depositing a metal film of superconductor precur...
08/20/1991
4997810Vibratory calcination of inorganic oxide superconductor precursor powders
An inorganic powder is vibrated while being calcined. The vibrations suspend the powder as in a conventional gas-fluidized system, without clumping, but without loss of fines. As applied to superconductor precursor powders, the treatment accelerates growt...
03/05/1991
4992415Method for fabricating ceramic superconductors
A method for fabricating a ceramic superconductor comprising the following steps: mixing a copper or copper alloy metal, a first metal oxide or carbonate which includes one element selected from group IIA of the Chemical Periodic Table, and a second metal...
02/12/1991
4985400Process for producing superconductive ceramics by atomization of alloy precurser under reactive atmospheres or post annealing under oxygen
The invention relates to a process for producing superconductive ceramics wherein, first, a liquid alloy melt is made of metals; this is carried out at a temperature at which the melt is chemically homogeneous. The melt is subsequently atomized with an in...
01/15/1991
4968663Ductile, single phase-continuous super-conducting oxide conductors
Ductile, composite superconductors having a continuous Re-Ba-Cu-O type or Bi-Sr-Ca-Cu-O type phases and a continuous noble metal phase and a process for their preparation are disclosed....
11/06/1990
4968665Target used for formation of superconductive oxide film, process of producing thereof, and process of forming superconductive oxide film on substrate using the same
A target for forming a superconductive oxide film consists of 5 to 40% by volume of metallic copper and 60 to 95% by volume of an oxygen compound of barium and copper, strontium, calcium and copper, or barium, calcium and copper dispersed in the metallic ...
11/06/1990
4962084Production of oxidic superconductor precursors
A process for producing an oxidic superconductor precursor alloy which comprises mechanicallly allowing metallic elemental constituents of the oxidic superconductor in stoichiometric proportions and in the presence of a process control agent non-detriment...
10/09/1990
4962085Production of oxidic superconductors by zone oxidation of a precursor alloy
Discloses a process for producing oxidic superconductors having advantageously textured oxide structures which involves zone oxidizing elongated metallic precursors of the superconductors....
10/09/1990
4956338Methods for forming complex oxidation reaction products including superconducting articles
A complex oxidation reaction product of two or more metals in an oxidized state is formed by positioning a suitable precursor metal adjacent to a permeable mass of a metal-containing compound in an oxidizing atmosphere and heating the assembly to form a b...
09/11/1990
4939308Method of forming crystallite-oriented superconducting ceramics by electrodeposition and thin film superconducting ceramic made thereby
The invention relates to an improvement in a method of forming deposits of superconducting ceramics. Generally, such ceramics are formed by electrodepositing a mixture of metals of the type and in proportions sufficient to be oxidized into ceramic; oxidiz...
07/03/1990
 
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