Niobium-titanium bar
An alloy composed of metal niobium and metal titanium. The titanium content of industrially produced niobium-titanium alloys is generally 20% to 60% (mass). The most typical niobium-titanium alloy contains 66% titanium [about 50% (mass)].
Niobium-titanium bar details
Among existing superconducting technologies, niobium-titanium superconducting alloy is the most widely used superconducting material.
The alloy also has excellent processing properties, and superconducting wire and strip products can be obtained through traditional smelting, processing and heat treatment processes.
The basic processing technology of niobium-titanium superconducting materials is: using a consumable electric arc furnace or plasma furnace to smelt pure titanium and pure niobium into alloy ingots, then hot-extrude the billets, and then hot-roll and cold-draw them into bars. ; Then insert the niobium-titanium alloy rod into the oxygen-free copper tube as the base material to form a single core rod; and process it into multi-core niobium-titanium superconducting wires and strips through multiple composite components. The material needs to undergo multiple large-scale cold processing (processing rate above 90%) and low-temperature (below 400°C) aging heat treatment to enable the superconductor to obtain enough effective pinning centers and improve the superconducting performance of the superconducting material.
Due to the zero resistance effect of the superconductor, which does not cause Joule heat loss, and the niobium-titanium superconductor can carry high transmission current under a strong magnetic field, the niobium-titanium superconductor is particularly suitable for electricians with high current and high current. Strong magnetic field. Field Application.
For example: high-field magnets, generators, motors, magnetic fluid power generation, controlled thermonuclear reactions, energy storage devices, high-speed maglev trains, ship electromagnetic propulsion and power transmission cables, etc.
The composition of niobium-titanium superconducting alloy materials should meet the requirements of Tc, Hc2 and Jc as much as possible, generally in the range of Nb-(40%-55%)Ti.
This alloy composition can not only obtain appropriately high Tc and Hc2, but also produce superconducting materials with high current carrying capacity and a large number of precipitated phases.
Applications of Niobium-Titanium Superconducting Alloys
Niobium-titanium alloy superconducting materials have been used in large-scale devices such as superconducting high-energy accelerators, superconducting magnetic resonance diagnostic instruments, superconducting maglev high-speed trains, and superconducting strong magnetic separators;
It is also used in energy development such as controlled nuclear fusion, magnetic fluid power generation, generators, power transmission, and energy storage.
In addition, it is also used in strong magnetic propulsion systems (ships, ships, high-speed launch devices, etc.) and military and national defense. In summary, plastic niobium-titanium alloy superconducting materials play an important role in large-scale superconductivity.
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Niobium-titanium alloy superconducting materials have been used in large-scale devices such as superconducting high-energy accelerators, superconducting MRI diagnostics, superconducting maglev high-speed trains, superconducting strong magnetic concentrators, etc.; they are also used in controlled nuclear fusion, magnetic fluid power generation, Applications in energy development such as generators, power transmission, and energy storage.
