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Superconducting wire Wikipedia
Superconducting wires are wires made of superconductors.When cooled below their transition temperatures, they have zero electrical resistance.Most commonly, conventional superconductors such as niobium-titanium are used, but high-temperature superconductors such as YBCO are entering the market. Superconducting wire's advantages over copper or aluminum include higher maximum current
Microstructure control of an oxide superconductor by a
Microstructure control of an oxide superconductor by a hybridization process through grinding
Superconductivity Wikipedia
Superconductivity is the set of physical properties observed in certain materials, wherein electrical resistance vanishes and from which magnetic flux fields are expelled. Any material exhibiting these properties is a superconductor.Unlike an ordinary metallic conductor, whose resistance decreases gradually as its temperature is lowered even down to near absolute zero, a superconductor has a
Oxide superconductor and process for producing the same
17/07/1996· A process for producing the sintered oxide superconductor product as defined in claim 1, which comprises mixing raw materials containing yttrium, barium, and copper so as to make a predetermined composition, firing the mixture, grinding the mixture, mixing raw materials containing platinum and/or palladium with the ground mixture, and molding
Texture in state-of-the-art Nb3Sn multifilamentary
powder-in-tube (PIT) type superconductors the Nb precursor filaments exhibit a strong h110i fiber texture as a consequence of the severe cold drawing process, and a h110itexture is also observed in the Nb3Sn. In the Nb–Ta precursor of the restacked rod process (RRP) strand there is an additional texture component, and in both Ta-alloyed and Ti-alloyed RRP type conductors the Nb3Sn grains
Superconductivity Wikipedia
Superconductivity is the set of physical properties observed in certain materials, wherein electrical resistance vanishes and from which magnetic flux fields are expelled. Any material exhibiting these properties is a superconductor.Unlike an ordinary metallic conductor, whose resistance decreases gradually as its temperature is lowered even down to near absolute zero, a superconductor has a
13 Best Limestone grinding mill images Gypsum, Grinding
Nov 23, 2016- Explore clirik's board "Limestone grinding mill" on Pinterest. See more ideas about Gypsum, Grinding machine and Powder.
Oxide superconductor and process for producing the same
17/07/1996· A process for producing the sintered oxide superconductor product as defined in claim 1, which comprises mixing raw materials containing yttrium, barium, and copper so as to make a predetermined composition, firing the mixture, grinding the mixture, mixing raw materials containing platinum and/or palladium with the ground mixture, and molding
US5173606A Superconductor electromagnetic radiation
A superconductor electromagnetic radiation detector includes a superconductor composite (2) that has a matrix (6) transparent to electromagnetic radiation wavelengths to be detected and a plurality of superconductor particles (4) dispersed in the matrix (6). The detector also includes remote means for detecting a physical response of the superconductor particles (4) to electromagnetic radiation.
Texture in state-of-the-art Nb3Sn multifilamentary
powder-in-tube (PIT) type superconductors the Nb precursor filaments exhibit a strong h110i fiber texture as a consequence of the severe cold drawing process, and a h110itexture is also observed in the Nb3Sn. In the Nb–Ta precursor of the restacked rod process (RRP) strand there is an additional texture component, and in both Ta-alloyed and Ti-alloyed RRP type conductors the Nb3Sn grains
Preparation of Nb Al superconductor by powder metallurgy
first part, normal hand grinding method was used to mill the Nb, Al powder. The mole ratio of Nb/Al = 3/1 was weighed, placed in an agate mortar and pestle, and mixed by gentle hand grinding for 0.5 h. The mixtures were pressed into round pellet with a diameter of 11.5 mm and a thickness of 1.5 mm using hardened steel die with uniaxial 12 MPa
Preparation of a Fine Powder of a Bi-Based SpringerLink
Abstract. A Bi-based high-Tc ceramic superconductor (Bi 1.6 Pb 0.4 Sr 2 Ca 2 Cu 3 O x) was milled in various fluids and the effect of fluids on the crystal structure and morphology of the milled powder was studied.It was found that methyl acetate is an excellent fluid for wet grinding without decomposition of the 110 K phase.
Comparative investigation of the ball milling role against
Comparative investigation of the ball milling role against hand grinding on microstructure, shows the transverse cross-section SEM images of all the elaborated products. The microstructure displays a morphology with faceted grains of YBCO randomly oriented. A relatively dense packing is present in various products. The YH-358 sample presents morphology composed of grains size little larger
Crystal structure instability of FeSe grains: Formation of
increasing grinding time as shown in the online supplementary data (Fig. S1). This suggests that the amount of the magnetic phase is increased by increasing the grinding time. To investigate the changes in crystal structure, we performed powder XRD experiments. Figure 3 shows the XRD patterns of the 1-, 15-, and 30-min FeSe powders. For the 1
Superconducting Properties of adipic acid doped Bulk MgB
of adipic acid powder was dissolved in 10 ml of Acetone. Then we added this solution in ground MgB 2 raw powder, which was followed by second grinding in order to form the homogenous mixture. The mixture was pelletized using hydraulic press. The pellets were enclosed in soft iron tube and then annealed at 850oC in argon atmosphere for 2.5 hours. The heating rate was about 425 oC per hour
Comparative investigation of the ball milling role against
Comparative investigation of the ball milling role against hand grinding on microstructure, shows the transverse cross-section SEM images of all the elaborated products. The microstructure displays a morphology with faceted grains of YBCO randomly oriented. A relatively dense packing is present in various products. The YH-358 sample presents morphology composed of grains size little larger
Crystal structure instability of FeSe grains: Formation of
increasing grinding time as shown in the online supplementary data (Fig. S1). This suggests that the amount of the magnetic phase is increased by increasing the grinding time. To investigate the changes in crystal structure, we performed powder XRD experiments. Figure 3 shows the XRD patterns of the 1-, 15-, and 30-min FeSe powders. For the 1
Superconducting Properties of adipic acid doped Bulk MgB
of adipic acid powder was dissolved in 10 ml of Acetone. Then we added this solution in ground MgB 2 raw powder, which was followed by second grinding in order to form the homogenous mixture. The mixture was pelletized using hydraulic press. The pellets were enclosed in soft iron tube and then annealed at 850oC in argon atmosphere for 2.5 hours. The heating rate was about 425 oC per hour
US7456134B2 Process for the continuous production of
The present invention provides a simple, energy efficient and cost effective process for continuous production of high quality MgB 2 based superconducting wires, tapes, bulk bodies and powders with better phase purity, microstructure and superconducting properties by introducing some innovative steps namely processing the reactants in evacuated and sealed metal tubes by electrical self-heating
Preparation of Nb3Al superconductor by powder metallurgy
Preparation of Nb3Al superconductor by powder metallurgy and effect of mechanical alloying on the phase formation Article (PDF Available) in Journal of Modern Transportation 22(1):55-58 · March
Melt-produced high temperature rare earth barium copper
15/08/1989· We claim: 1. A method for making a melt-produced high temperature superconductor comprising the steps of: mixing and grinding BaCO 3 and CuO with nominal compositions of at least one compound chosen from the group consisting of Ba 2 Cu 3 O 5, BaCu 3 O 4, BaCu 4 O 5, BaCu 6 O 7, and BaCu 12 O 13; . pressing the resultant mixture into a pellet;
Effect of coumarin addition on the superconducting
After, this dry precursor powder was put into the zirconium oxide grinding jar containing zirconium oxide grinding balls. This process was carried out in a high purity argon gas atmosphere inside a glove box. Then, this powder was mixed with a suitable amount of Mg powder by using ball-milling. The ball-milling time for all the samples was 6
(PDF) Manufacturing and studying the effect of partial
Manufacturing and studying the effect of partial substitution on the properties of the compound Bi 2-x Ag x Sr 1.9 Ba 0.1 Ca 2 Cu 3 O 10+δ superconductors.
Experiment 7:High-Temperature Superconductivity PhysicsLab
Experiment 7:High-Temperature Superconductivity From PhysicsLab This is a materials science experiment, with a primary purpose of making a specimen of the ceramic superconductor yttrium barium copper oxide (YBCO). This compound belongs to the group of materials discovered in 1986 by G. Bednorz and K. Muller at the IBM Zurich Research Lab. These
Superconductivity in a unique type of copper oxide PNAS
18/06/2019· Superconductivity is one of the most mysterious phenomena in nature in that the materials can conduct electrical current without any resistance. The cuprates hold the record high superconducting temperature at room pressure so far, but understanding their superconducting mechanism remains one of the big challenges. Here, we report high- T c superconductivity in Ba2CuO4- y with two unique
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