Organic free montmorillonite-based flexible insulating sheaths for Nb3Sn superconductor magnets

Prouzet, Éric; Puigsegur, A.; Larbot, A.; Rey, Jean‐Michel; Rondeaux, F.

doi:10.1016/j.clay.2013.04.011

Cited by 3 publications

(1 citation statement)

References 31 publications

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“…Nb3Sn magnets are basically fabricated via wind-and-react technology; that is, they must be wound first to form a magnet shape and then the magnets are heat-treated to form Nb3Sn phases. The intense brittleness of the Nb3Sn material results in poor workability, and thus, this material is more difficult to deal with once it is heat-treated compared with the highly ductile NbTi material, which exhibits good flow characteristics for easy processing [1] . In a magnet with Nb3Sn coils, Nb3Sn leads must generally be connected to NbTi wires, which are then used as the final current leads.…”

Section: Introductionmentioning

confidence: 99%

Interfacial Microstructures of Nb3Sn–NbTi Joints Fabricated via Resistive Welding

Sun,

Cheng,

Wang

et al. 2023

J Low Temp Phys

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Nb3Sn and NbTi superconducting joints were fabricated successfully via resistive welding technology. After long periods of heat treatment, Nb3Sn joints with a Nb3Sn block that surrounded Nb3Sn wires were prepared. The Nb3Sn block was welded together with the NbTi wires to form a joint without intermediate layers between them. The shortest path to conduct the superconducting current contributed to improving joint performance and reducing joint resistance. We investigated microstructural changes in Nb3Sn-NbTi superconducting joints. This type of joint has two interfaces: the interface between the Nb3Sn wires and the Nb3Sn block and the interface between the Nb3Sn block and the NbTi wires. Both interfaces are essential for conducting the superconducting current. We can improve our understanding of the underlying mechanism in the current path by investigating the microstructures of these joints. Results showed that Nb3Sn was welded together with NbTi, and the joint exhibited excellent performance. The resistance of the joint was lower than 2×10 −13 Ω under a background field of 1.25 T, which can meet most applications of Nb3Sn magnets.

show abstract

Section: Introductionmentioning

confidence: 99%

Interfacial Microstructures of Nb3Sn–NbTi Joints Fabricated via Resistive Welding

Sun,

Cheng,

Wang

et al. 2023

J Low Temp Phys

View full text Add to dashboard Cite

show abstract

Effect of the temperature on the structural and textural properties of a compressed K-vermiculite

Balima

Nguyen

Reinert

et al. 2015

Chemical Engineering Science

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Interfacial microstructures of Nb 3 Sn–NbTi joints fabricated via resistive welding

Sun,

Cheng,

Wang

et al. 2023

Preprint

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Nb3Sn and NbTi superconducting joints were fabricated successfully via resistive welding technology. After long periods of heat treatment, Nb3Sn joints with a Nb3Sn block that surrounded Nb3Sn wires were prepared. The Nb3Sn block was welded together with the NbTi wires to form a joint without intermediate layers between them. The shortest path to conduct the superconducting current contributed to improving joint performance and reducing joint resistance. We investigated microstructural changes in Nb3Sn–NbTi superconducting joints. This type of joint has two interfaces: the interface between the Nb3Sn wires and the Nb3Sn block and the interface between the Nb3Sn block and the NbTi wires. Both interfaces are essential for conducting the superconducting current. We can improve our understanding of the underlying mechanism in the current path by investigating the microstructures of these joints. Results showed that Nb3Sn was welded together with NbTi, and the joint exhibited excellent performance. The resistance of the joint was lower than 2×10− 13 Ω under a background field of 1.25 T, which can meet most applications of Nb3Sn magnets.

show abstract

Organic free montmorillonite-based flexible insulating sheaths for Nb3Sn superconductor magnets

Cited by 3 publications

References 31 publications

Interfacial Microstructures of Nb3Sn–NbTi Joints Fabricated via Resistive Welding

Interfacial Microstructures of Nb3Sn–NbTi Joints Fabricated via Resistive Welding

Effect of the temperature on the structural and textural properties of a compressed K-vermiculite

Interfacial microstructures of Nb 3 Sn–NbTi joints fabricated via resistive welding

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