Treffer: Interstrand contact resistance in Nb3Sn cables under LARP-type preparation conditions

Title:
Interstrand contact resistance in Nb3Sn cables under LARP-type preparation conditions
Authors:
COLLINGS, E. W, SUMPTION, M. D, AMBROSIO, G, ILYIN, Y, NIJHUIS, A
Source:
The 2006 applied superconductivity conference, Seattle, WA, August 27-September 1, 2006. Part II of three partsIEEE transactions on applied superconductivity. 17(2):2494-2497
Publisher Information:
New York, NY: Institute of Electrical and Electronics Engineers, 2007.
Publication Year:
2007
Physical Description:
print, 16 ref 2
Original Material:
INIST-CNRS
Subject Terms:
Electronics, Electronique, Electrical engineering, Electrotechnique, Sciences exactes et technologie, Exact sciences and technology, Sciences appliquees, Applied sciences, Electronique, Electronics, Electronique des semiconducteurs. Microélectronique. Optoélectronique. Dispositifs à l'état solide, Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices, Circuits intégrés, Integrated circuits, Conception. Technologies. Analyse fonctionnement. Essais, Design. Technologies. Operation analysis. Testing, Circuits électriques, optiques et optoélectroniques, Electric, optical and optoelectronic circuits, Propriétés des circuits, Circuit properties, Circuits hyperfréquences, circuits intégrés hyperfréquences, lignes de transmission hyperfréquences, circuits à ondes submillimétriques, Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits, Electrotechnique. Electroenergetique, Electrical engineering. Electrical power engineering, Matériel électrique divers, Various equipment and components, Electroaimants, Electromagnets, Aimant, Magnet, Imán, Aimantation, Magnetization, Imanación, Champ alternatif, Alternating field, Campo alternativo, Circuit intégré monolithique, Monolithic integrated circuit, Circuito integrado monolítico, Circuit intégré onde millimétrique, Millimeter wave integrated circuits, Céramique, Ceramic materials, Cerámica, Distribution courant, Current distribution, Distribución corriente, Etat surface, Surface conditions, Estado superficie, Matériau imprégné, Impregnated material, Material impregnado, Mesure magnétique, Magnetic measurement, Medida magnética, Méthode mesure, Measurement method, Método medida, Perte courant alternatif, AC losses, Perte magnétique, Iron loss, Pérdida magnética, Perte énergie, Energy loss, Pérdida energía, Résistance contact, Contact resistance, Resistencia contacto, Toron, Strand, Bocel, Traitement thermique, Heat treatment, Tratamiento térmico, AC loss, LARP, Rutherford cables, cable preparation conditions, heat treatment, interstrand contact resistance
Document Type:
Konferenz Conference Paper
File Description:
text
Language:
English
Author Affiliations:
Laboratories for Applied Superconductivity and Magnetism, MSE, The Ohio State University, Columbus, OH 43210, United States
Fermilab, Batavia, IL, United States
Low Temperature Faculty of the University of Twente, Netherlands
ISSN:
1051-8223
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=19016782
Rights:
Copyright 2007 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Electrical engineering. Electroenergetics

Electronics
Accession Number:
edscal.19016782
Database:
PASCAL Archive

Weitere Informationen

The Nb3Sn cables being developed under the LARP program will need to have suitable, reproducible, and uniform interstrand contact resistances (ICR) in the interests of accelerator-field quality (low coupling magnetization) and stability (current-sharing between strands). In the first of a pair of studies ICR was measured in response to variation of strand surface condition. As a sequel to this the present set of measurements explores the influence of cable preparation conditions on ICR, determined as before using calorimetric and magnetic AC-loss measurement techniques in face-on and edge-on applied AC fields. Uncored Rutherford cables were wound at Fermilab from OST MJR-type strand and wrapped with S-glass tape impregnated in most cases with a ceramic binder (applied before reaction HT). The HT/pressurization sequence of the cables was made to mimic as closely as possible the expected LARP magnet-fabrication schedules. Derived from maxima in the loss-vs-frequency curves was an ICR inhomogeneity-two ICRs for each cable pack each associated with a particular fraction of the strands. Furthermore, both of the ICRs, at 0.4 and 4 μΩ, would in a magnet be too small to satisfy the generally accepted magnetization requirements.