Journal ArticleDOI
Influence of cyclic loading at room temperature on the critical current at 4.2 K of Nb3Sn superconducting composite wire
S. Ochiai,Kozo Osamura +1 more
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In this paper, the influence of cyclic loading at room temperature on the critical current at 4.2 K of bronze-processed multifilamentary Nb 3 Sn superconducting composite wire was studied.About:
This article is published in Cryogenics.The article was published on 1992-01-01. It has received 42 citations till now. The article focuses on the topics: Critical field & Stress (mechanics).read more
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Nb3Sn tensile strength and its distribution estimated from change in superconducting critical current of preloaded multifilamentary composite wire
TL;DR: In this paper, the tensile strength of Nb 3 Sn in multifilamentary composite wires heat-treated at 973 K for 8.64 ks and for 43.2 ks was estimated from an analysis of the change in the superconducting critical current at 4.2 K caused by preloading treatment at room temperature.
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Performance of Polyvinyl Formal Insulated Cu–Nb/Nb3Sn Wires for React-and-Wind Process
Masahiro Sugimoto,Hirokazu Tsubouchi,Kota Katayama,Hideki,Daisuke Asami,Satoshi Awaji,Hidetoshi Oguro +6 more
TL;DR: In this paper, polyvinyl formal (PVF) insulated Cu-Nb/Nb¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ 3�Sn wires were successfully developed for react-and-wind (R&W) process.
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Fatigue behaviour at room temperature and its influence on superconducting properties at 4.2 K of multifilamentary composite wire
Shojiro Ochiai,Tekahiro Sawada,Fumiaki Sekino,Masaki Hojo,Yuchi Yamada,Ken Ichi Takahashi,Naoki Ayai,Kazuo Watanabe +7 more
TL;DR: In this paper, the authors studied the fatigue behavior at room temperature and its influence on superconducting current and upper critical magnetic field at 42 k using multifilamentary composite wire with a copper ratio of 155 and an overall diameter of 812 mm.
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Residual Strain in a ${\rm Nb}_{3}{\rm Sn}$ Strand Mounted on a Barrel for Critical Current Measurements
TL;DR: In this article, the authors report neutron diffraction measurements that have been carried out at room temperature and at 10 K in order to determine the strain state of a Nb3Sn powder-in-tube (PIT) strand mounted on a critical current measurement barrel made out of a Ti-6Al-4V alloy.
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Strength distribution of filamentary Nb3Al and Nb3Sn compounds and its relation to mechanical and superconducting properties of multifilamentary composites: a review
TL;DR: In this article, the tensile strength distribution of filamentary Nb 3 Sn and Al compounds and its relation to the mechanical and superconducting properties of multifilamentary composites are briefly reviewed.
References
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Scaling laws for flux pinning in hard superconductors
TL;DR: In this paper, it was shown that the peak in Fp scales as [Hc2(T)]2.5 if the temperature is changed; the maximum value of Fp occurred at the same value of reduced field regardless of temperature.
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Strain scaling law for flux pinning in practical superconductors. Part 1: Basic relationship and application to Nb3Sn conductors
TL;DR: In this article, the authors present the basic uniaxial-strain scaling relationship and focus on its application to Nb3Sn conductors, and propose a general scaling relation which unifies the usual temperature scaling relation with this strain-scaling relation.
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Strain dependence of the critical current and critical field in multifilamentary Nb 3 Sn composites
TL;DR: In this article, the performance of high-J c multifilamentary Nb 3 Sn superconductors with widely varying amounts of prestrain and critical field values can be characterized fairly accurately by a single normalized critical field-strain relationship.
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Effect of stress on the critical current of Nb3Sn multifilamentary composite wire
TL;DR: In this article, a critical current study of flexible Nb3Sn multifilamentary composite wires has been conducted at 4 K in magnetic fields to 90 kOe (7.2×106 A/m) while the wire is subjected to high mechanical stresses.
Journal ArticleDOI
Performance of multifilamentary Nb3Sn under mechanical load
D. S. Easton,Robert E. Schwall +1 more
TL;DR: In this paper, the critical current of a commercial multifilamentary Nb3Sn conductor was measured under the application of uniaxial tension at 4.2 K and following bending at room temperature.