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Electromechanical behaviour of PIT Nb$_{3}$Sn wires for NED
/ Seeber, B (Geneva U.) ; Senatore, C (Geneva U.) ; Buta, F (Geneva U.) ; Flükiger, R (Geneva U.) ; Boutboul, T (CERN) ; Scheuerlein, C (CERN) ; Oberli, L (CERN) ; Rossi, L (CERN)
The critical current vs. axial tensile strain and transverse compressive force for two PIT Nb$_{3}$Sn conductors, manufactured by SMI (now EAS), has been investigated. [...]
CERN, 2009
Published version from CERN: PDF;
In : Workshop on Accelerator Magnet Superconductors, Design and Optimization, CERN, Geneva, Switzerland, 19 - 23 May 2008, pp.37-41 (CERN-2009-001)
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2.
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Stress distribution and lattice distortions in Nb$_{3}$Sn multifilament wires under uniaxial tensile loading at 4.2 K
/ Scheuerlein, C (CERN) ; Di Michiel, M (ESRF, Grenoble) ; Buta, F (U. Geneva (main)) ; Seeber, B (U. Geneva (main)) ; Senatore, C (U. Geneva (main)) ; Flükiger, R (CERN ; U. Geneva (main)) ; Siegrist, T (Florida State U., Tallahassee (main) ; Natl. High Mag. Field Lab.) ; Besara, T ; Kadar, J (CERN) ; Bordini, B (CERN) et al.
The lattice parameter changes in three types of Nb$_{3}$Sn superconducting wires during uniaxial stress-strain measurements at 4.2 K have been measured by high-energy synchrotron x-ray diffraction. The nearly-stress-free Nb$_{3}$Sn lattice parameter has been determined using extracted filaments, and the elastic strain in the axial and transverse wire directions in the different wire phases has been calculated. [...]
2014
- Published in : Supercond. Sci. Technol. 27 (2014) 044021
In : 11th European Conference on Applied Superconductivity, Genova, Italy, 15 - 19 Sep 2013, pp.044021
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3.
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Critical Current, Electro-Mechanical Properties and Specific Heat of Bronze Nb$_{3}$Sn Conductors
/ Uglietti, D ; Seeber, B ; Abächerli, V ; Wang, Y X ; Junod, A ; Flükiger, R
2005
Published version from CERN: PDF;
In : Workshop on Accelerator Magnet Superconductors, Archamps, France, 22 - 24 Mar 2004, pp.104-111
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4.
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Heat Treatment Optimization Studies on PIT Nb$_3$Sn Strand for the NED Project
/ Boutboul, T (CERN) ; Oberli, L (CERN) ; den Ouden, A (Twente U. Tech., Enschede) ; Pedrini, D (INFN, Milan Bicocca) ; Seeber, B (Geneva U.) ; Volpini, G (INFN, Milan ; LASA, Segrate)
For the Next European Dipole (NED) program, a Powder-In-Tube (PIT) strand was successfully developed by SMI. This high-performance Nb$_{3}$Sn strand presents a non-copper critical current density of ~ 2500 A/mm2 at 12 T applied field and 4.2 K and a filament diameter around 50 µm. [...]
CERN-AT-2008-041.-
Geneva : CERN, 2009 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 19 (2009) 2564-2567
Fulltext: PDF; IEEE Published version, local copy: PDF;
In : Applied Superconductivity Conference 2008, Chicago, IL, USA, 17 - 22 Aug 2008, pp.2564-2567
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5.
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Residual strain in a Nb$_3$Sn strand mounted on a barrel for critical current measurements
/ Thilly, L (Futuroscope Chasseneuil, Poitiers U. LMP) ; Scheuerlein, C (CERN) ; Stuhr, U (Zurich, ETH ; PSI, Villigen) ; Bordini, B (Pisa U.) ; Seeber, B (Geneva U.)
The strain dependence of the critical properties of Nb$_{3}$Sn superconducting strands is a major complication for critical current (Ic) measurements. We 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 Nb$_{3}$Sn powder-in-tube (PIT) strand mounted on a critical current measurement barrel made out of a Ti-6Al-4V alloy..
CERN-AT-2008-040.-
Geneva : CERN, 2009 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 19 (2009) 2645-2648
Fulltext: PDF; IEEE Published version, local copy: PDF;
In : Applied Superconductivity Conference 2008, Chicago, IL, USA, 17 - 22 Aug 2008, pp.2645-2648
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6.
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Effects of the oxygen source configuration on the superconducting properties of internally-oxidized internal-Sn Nb$_{3}$Sn wires
/ Bovone, G (Geneva U.) ; Buta, F (Geneva U.) ; Lonardo, F (Geneva U.) ; Bagni, T (Geneva U.) ; Bonura, M (Geneva U.) ; LeBoeuf, D (LNCMI, Grenoble) ; Hopkins, S C (CERN) ; Boutboul, T (CERN) ; Ballarino, A (CERN) ; Senatore, C (Geneva U.)
We successfully manufactured 12-filament rod-in-tube Nb$_{3}$Sn wires with oxide nanoparticles formed by the internal oxidation method. We employed Nb-7.5 wt%Ta-1 wt%Zr and Nb-7.5 wt%Ta-2 wt% Hf alloys along with oxygen sources (OSs) in two different configurations—in the core of Nb filaments (coreOS) and at the boundary between the filaments and the Cu tube (annularOS)—to assess the influence of the OS layout on the superconducting properties and grain size. [...]
2023 - 11 p.
- Published in : Supercond. Sci. Technol. 36 (2023) 095018
Fulltext: PDF;
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7.
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Synchrotron radiation techniques for the characterization of Nb$_{3}$Sn superconductors
/ Scheuerlein, C (CERN) ; Di Michiel, M (ESRF, Grenoble) ; Buta, F (Geneva U.)
The high flux of high energy x-rays that can be provided through state-of-the-art high energy synchrotron beam lines has enabled a variety of new experiments with the highly absorbing Nb$_{3}$Sn superconductors. We report different experiments with Nb$_{3}$Sn strands that have been conducted at the ID15 High Energy Scattering beam line of the European Synchrotron Radiation Facility (ESRF). [...]
CERN-AT-2008-039.-
Geneva : CERN, 2009 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 19 (2009) 2653-2656
Fulltext: PDF; IEEE Published version, local copy: PDF;
In : Applied Superconductivity Conference 2008, Chicago, IL, USA, 17 - 22 Aug 2008, pp.2653-2656
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8.
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Coarse Nb$_{3}$Sn Grain Formation and Phase Evolution during the Reaction of a High SN Content Internal Tin Strand
/ Scheuerlein, C (CERN) ; Di Michiel, M (U. Geneva (main)) ; Arnau, G (CERN) ; Flükiger, R (U. Geneva (main)) ; Buta, F (U. Geneva (main)) ; Pong, I (CERN) ; Oberli, L (CERN) ; Bottura, L (CERN)
The formation of coarse Nb$_{3}$Sn grains in Internal Tin (IT) strands has been studied at the example of a prototype strand with high Sn content. Metallographic examination revealed that the comparatively low critical current density (Jc) of this strand is partly due to the formation of a significant fraction of coarse grained Nb$_{3}$Sn at the periphery of the individual filaments within the subelements [...]
CERN-ATS-2011-068.-
Geneva : CERN, 2011 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 21 (2011) 2554-2558
Fulltext: PDF; IEEE Published version, local copy: PDF;
In : Applied Superconductivity Conference 2010, Washington, DC, USA, 1 - 6 Aug 2010
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9.
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10.
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Extensive Characterization of the 1 mm PIT Nb$_{3}$Sn strand for the 13-T FRESCA2 Magnet
/ Bordini, B (CERN) ; Bottura, L (CERN) ; Mondonico, G (U. Geneva (main)) ; Oberli, L (CERN) ; Richter, D (CERN) ; Seeber, B (U. Geneva (main)) ; Senatore, C (U. Geneva (main)) ; Takala, E (CERN) ; Valentinis, D (CERN)
In the framework of the EuCARD program, CERN is participating in the development of a 13 T 100-mm-aperture dipole magnet to upgrade the superconducting cable test facility FRESCA at CERN. The conductor candidates for building this magnet are two 1-mm Nb$_{3}$Sn strands: the Powder In Tube (PIT) produced by Bruker-EAS and the 132/169 RRP by Oxford Superconducting Technology (OST). [...]
CERN-ATS-2012-031.-
Geneva : CERN, 2012 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 22 (2012) 6000304
Fulltext: PDF;
In : 22nd International Conference on Magnet Technology, Marseille, France, 12 - 16 Sep 2011
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