PURPOSE:To provide a superconductive wire of oxide type in multi-layer structure easily by forming superconductor layers of oxide type and normal electroconductive layers alternately by thermal spraying over the outer surface of a base consisting of normal electroconductive substance. CONSTITUTION:Superconductor layer 2a of oxide type is formed by thermal spraying over the surface of a base 1 in t...

PURPOSE:To provide a long superconductive wire having good mechanical properties and stable superconductivity by twining superconductive strands of oxide type, and covering the surface with normally electroconductive substance by fusion spray or plating. CONSTITUTION:Strands made of superconductive material of oxide type are twined together, and the surface is covered with normally electroconducti...

PURPOSE:To provide a superconductive wire having very high degree of filling, uniformity, and excellent superconductivity by shrinking a metal tubing filled with superconductive substance of ceramic type, subjecting it to isotropic pressure processing, and performing heat treatment for giving superconductivity. CONSTITUTION:Powder of superconductive material of ceramic type is baked preliminary to...

PURPOSE:To manufacture superconductive molding of oxide type with excellent superconductivity effectively by introducing the material into a reaction trough upon fluidizing, heating the fluid and causing reaction under control, and educing the obtained product on a base. CONSTITUTION:A material 1 and a transport substance 2 as medium for transporting the material are prepared with a flow meter 3 a...

PURPOSE:To provide a uniform quality superconductor layer by forming superconductor layer at the bore of a hollow base, inserting a core and rolling for turning of it into a wire, and then subjecting it to heat treatment for stabilization of the superconductor layer. CONSTITUTION:A superconductor layer 2 is provided at the bore of a hollow base 1, and a core 8 is inserted therein. This base 1 is r...

PURPOSE:To provide long wire with high current density by coating the periphery of a reinforcement with a mixture solution in which powder of ceramic superconductor is dispersed, and by re-sintering it. CONSTITUTION:A long reinforcement 4 covered with a metal with no production of oxides at high temp. or an alloy therefrom is coated at its periphery with a mixture solution, in which powder of cera...

PURPOSE:To manufacture long superconducrtive wire having dense ceramic layer by placing thin films of ceramic superconductor at the periphery of a wire one after another while a compression force is applied. CONSTITUTION:Component elements, which produce ceramic superconductor through heating in oxidating atmosphere, are placed in a certain mix proportion at the periphery of a wire which does not ...

PURPOSE:To provide a long wire with high current density by coating a rein forcement on its periphery with a mixture solution in which mixture powder is dispersed, that consists of components producing ceramic superconductor through heating under oxidating atmosphere, and by sintering the result in oxidating atmosphere. CONSTITUTION:A mixture solution, in which mixture powder consisting of compone...

PURPOSE:To manufacture long superconductive wire with dense ceramic layer by covering each wire on its periphery with thin layers of ceramic superconduc tor one over another, and giving compression force in the final stage of heat treatment. CONSTITUTION:A wire not producing oxides at high temp. is covered with ceramic superconductive by means of evaporation or sputtering, and the evapora tion lay...

PURPOSE:To manufacture superconductive wire with high current density by turning component materials producing ceramic superconductor by oxidation into a wire and then performing heat treatment for making it ceramics. CONSTITUTION:Component materials producing ceramic superconductor by heat treatment in oxidating atmosphere are dissolved and cast, and the cast rod is area reduced to form a wire 3,...

PURPOSE:To provide stable superconductivity by forming a laminate body of a normally electroconductive substance, oxide superconductor, and another normally electroconductive substance by means of thermal spraying, cutting into a desired shape while the end is melted fast by high energy beam, and thereby accomplishing a wire. CONSTITUTION:By means of thermal spraying method a superconductor layer ...

PURPOSE:To provide a uniform superconductive film of oxide type prepared through coating and baking by performing reaction of carbonates with metal salt of different elements consisting a superconductor of oxide type and obtaining an organic solution containing the carbonates consisting of these elements in a specified content. CONSTITUTION:Carbonates are reacted with metal salt of different eleme...

PURPOSE:To manufacture superconductive wire which uses oxide superconductor of layer-formed perovskite type by subjecting the surface of a long base having a layer of Cu oxide to thermal spraying of a material containing a substance to become oxide superconductor, and performing high energy beam irradiation in oxygen atmosphere. CONSTITUTION:Surface of a base for a long wire or tubing having surfa...

PURPOSE:To manufacture long electric wire, cable, and coil by fluidifing a superconductive material of ceramic type, extruding it from a nozzle with small dia., shaping into desired form, and performing sintering. CONSTITUTION:A superconductive material of ceramic type 10 is fluidified and extruded from a nozzle 2 with small dia. to shape it into a desired form 14, that undergoes then sintering. T...

PURPOSE:To manufacture superconductive wires of ceramic type continuously by supplying the material in the form of powder or fiber onto a silver ribbon running, rounding the ribbon into a tubing, welding the butted parts at the edges fats, and subjecting it to stretching to make it thinner. CONSTITUTION:Ceramic superconductive material in the form of powder 1 or fiber is supplied onto a silver rib...

PURPOSE:To provide long superconductive wire of ceramic type easily by inserting mixture of 20-50% powder of LnBa2Cu3Ox and power of Ag as the reset into a metal tubing, and area reducing to turn into a wire. CONSTITUTION:20-50wt.% Ln Ba2Cu3Ox powder (Ln represents Y, Lu, Yb, Tm, Er, Ho, Dy, Se, while x oxidation number decided by manufacturing conditions) is mixed with powder of Ag as the rest. T...

PURPOSE:To provide a superconductive thin film consisting of laminated of group IIIa-Ba oxide-Cu oxide with high reproductivity by placing group IIIa-Ba and Cu on a base one over another, and irradiating oxygen neutral beam. CONSTITUTION:Three mutually independent evaporation cells 1-3, a base holder 4, and an oxygen ion source 8 are installed in a vacuum chamber. Group IIIa metal, Ba and/or its o...

This invention concerns oriented polypropylene films having increased rigidity, tensile strength and impact resistance, and decreased water vapour transmission compared with hitherto proposed films. This is achieved by the use of polypropylene having a melt flow index of from 1.5 to 18.0 and a polydispersity index of from 3.0 to 5.5. Large area stretch ratios can be achieved, for example in excess...

Well monitoring apparatus includes a side pocket mandrel 30 for inclusion in a well tubing string for removably receiving an instrument 38 in its offset receptacle bore 36 for monitoring at least one parameter such as pressure, temperature or the like, at a downhole location, there being an electrical conductor wire 43 extending from equipment 55 at the surface downward to the side pocket mandrel ...

Well monitoring apparatus includes a side pocket mandrel 30 for inclusion in a well tubing string for removably receiving an instrument 38 in its offset receptacle bore 36 for monitoring at least one parameter such as pressure, temperature or the like, at a downhole location, there being an electrical conductor wire 43 extending from equipment 55 at the surface downward to the side pocket mandrel ...