NDLI: Development of <formula formulatype=inline><tex Notation=TeX>${rm Nb}_{3}{rm Sn}$</tex></formula> Internal Tin Strands With Enhanced Current Capacity and Improved Mechanical Properties

Content Provider	IEEE Xplore Digital Library
Author	Sudyev, S.V. Pantsyrny, V.I. Vorobyeva, A.E. Beliakov, N.A. Sergeev, V.V.
Copyright Year	2002
Abstract	The current carrying capacity of different design internal tin strands at high magnetic fields was investigated. Two high critical current density internal tin Nb₃Sn strands with different level of mechanical properties have been designed. The increase of mechanical strength has been attained by replacing part of the stabilizing copper by strengthening elements made of “in situ” nanocomposite Cu-Nb rods. The analysis of the mechanical properties of the strands in virgin state and after the reaction heat treatment has been done. The microstructure of strands components including Nb₃Sn filaments has been investigated. The results of current carrying capacity measurements of 0.6 mm diameter strands in magnetic fields up to 20 T (4.2 K; 0.1 μV/cm) and hysteresis losses measurements (± 3 T cycles) are presented. It was shown that for the strand with enhanced mechanical strength the non-Cu critical current densities attained were 2580 A/mm² and 235 A/mm² at 12 T and 20 T, respectively, and for the strand without strengthening elements the non-Cu critical current densities were equal to 2250 A/mm² and 500 A/mm² at 12 T and 20 T, respectively. The correlation between the microstructure and superconducting properties of the different strands designs are discussed.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	2575
Ending Page	2578
Page Count	4
File Size	2205984
File Format	PDF
ISSN	10518223
Volume Number	21
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Tin Superconducting magnets Wires Superconducting filaments and wires Heat treatment Critical current density Magnetic hysteresis superconducting filaments and wires Internal-tin ${\rm Nb}_{3}{\rm Sn}$ strand niobium compounds superconducting composites
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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