METHOD FOR MANUFACTURING SUPERCONDUCTING COMPOSITE WIRE BASED ON NbSn Russian patent published in 2023 - IPC H01B12/06 

Abstract RU 2804454 C1

FIELD: electrical engineering.

SUBSTANCE: invention is related to creation of long-length composite wires based on superconducting compounds intended for the manufacture of electrical products. The method for producing a superconducting wire based on Nb3Sn includes forming the first multifibre preform doped with titanium and/or tantalum by placing a diffusion barrier and a copper matrix in a copper sheath. A tin-containing rod is placed in the centre of the matrix, and niobium-containing rods are placed around it, each of which has a copper-containing shell. The second multifilament blank is formed from the obtained measured parts by assembling them in a metal case. The second multifilament preform is deformed by drawing it to obtain a wire with a diameter of 2 to 0.2 mm, followed by its stepwise heat treatment. At the first stage, heat treatment is carried out at a temperature of 410-500°C for 5-200 h, and the second stage of heat treatment is carried out at a temperature of 620-750°C for between 24 to 400 hours.

EFFECT: invention ensures a high current-carrying capacity in the superconducting composite wire based on Nb3Sn in magnetic fields with induction above 12 T.

4 cl, 3 dwg

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RU 2 804 454 C1

Authors

Abdyukhanov Ildar Mansurovich

Alekseev Maksim Viktorovich

Silaev Aleksandr Gennadevich

Pantsyrnyj Viktor Ivanovich

Mareev Konstantin Alekseevich

Krylova Mariya Vladimirovna

Tsapleva Anastasiya Sergeevna

Lukyanov Pavel Aleksandrovich

Zernov Sergej Mikhajlovich

Dates

2023-09-29Published

2019-12-26Filed