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Description
Scientists have incorporated other metal as pinning centers into Niobium-titanium alloys in order to increase the critical current density of Niobium-titanium superconductors. This type of superconductor is known as an artificial pinning center niobium-titanium superconductor. Methods for fabricating artificially pinned superconductors include Rod-based, Gun-drill, Diffused-layer, Jelly-roll, Powder-metallurgy, and so on. In this study, APC Niobium-titanium wires, fabricated by the Powder-Metallurgy technique, involve niobium-titanium powder and niobium powder, that particle sizes range from 53 to 150 microns and Niobium powder ratio range from 10% vol to 30% vol . We explored the influence of niobium powder doping ratio on the microstructure and superconducting properties of artificially pinned Niobium-titanium wires. And the highest Critical Current Density of the wire, which niobium powder ratio is 30%, was obtained at lower magnetic fields. The Critical Current Density of 30%Nb-APC wire is 8180A/mm2 at 2T and 4.22K.
