Influence of strand surface condition in interstrand contact resistance and coupling loss in NbTi-wound Rutherford cables

M.D. Sumption; E.W. Collings; R.M. Scanlan; Arend Nijhuis; Herman H.J. ten Kate; S.W. Kim; M. Wake; T. Shintomi

doi:10.1016/S0011-2275(99)00021-1

Influence of strand surface condition in interstrand contact resistance and coupling loss in NbTi-wound Rutherford cables

M.D. Sumption, E.W. Collings, R.M. Scanlan, Arend Nijhuis, Herman H.J. ten Kate, S.W. Kim, M. Wake, T. Shintomi

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Abstract

Presented in this work are the results of directly measured and AC-loss-derived interstrand contact resistance (ICR) measurements performed magnetically or resistively on bare-Cu and coated-strand pairs, calorimetrically on 11-strand Rutherford cables wound with strands that had been coated with various metallic and insulating layers, and calorimetrically and magnetically on 28-strand Rutherford cables (LHC-type) wound with bare-Cu-, Ni-, and stabrite-plated strands. Comparisons are made of the effects of various conditions of heat treatment, HT (time and temperature), and pressure (applied during HT and then either maintained or re-applied during measurement). The resulting ICRs are compared and interpreted in terms of the oxide layer on the strand coating and its response to curing conditions.

Original language	Undefined
Pages (from-to)	197-208
Number of pages	12
Journal	Cryogenics
Volume	39
Issue number	3
DOIs	https://doi.org/10.1016/S0011-2275(99)00021-1
Publication status	Published - 1999

Keywords

Superconductors
IR-73977
METIS-128833
Multifilament wires and tapes
AC losses

Access to Document

10.1016/S0011-2275(99)00021-1

Cite this

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title = "Influence of strand surface condition in interstrand contact resistance and coupling loss in NbTi-wound Rutherford cables",

abstract = "Presented in this work are the results of directly measured and AC-loss-derived interstrand contact resistance (ICR) measurements performed magnetically or resistively on bare-Cu and coated-strand pairs, calorimetrically on 11-strand Rutherford cables wound with strands that had been coated with various metallic and insulating layers, and calorimetrically and magnetically on 28-strand Rutherford cables (LHC-type) wound with bare-Cu-, Ni-, and stabrite-plated strands. Comparisons are made of the effects of various conditions of heat treatment, HT (time and temperature), and pressure (applied during HT and then either maintained or re-applied during measurement). The resulting ICRs are compared and interpreted in terms of the oxide layer on the strand coating and its response to curing conditions.",

keywords = "Superconductors, IR-73977, METIS-128833, Multifilament wires and tapes, AC losses",

author = "M.D. Sumption and E.W. Collings and R.M. Scanlan and Arend Nijhuis and {ten Kate}, {Herman H.J.} and S.W. Kim and M. Wake and T. Shintomi",

year = "1999",

doi = "10.1016/S0011-2275(99)00021-1",

language = "Undefined",

volume = "39",

pages = "197--208",

journal = "Cryogenics",

issn = "0011-2275",

publisher = "Elsevier",

number = "3",

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TY - JOUR

T1 - Influence of strand surface condition in interstrand contact resistance and coupling loss in NbTi-wound Rutherford cables

AU - Sumption, M.D.

AU - Collings, E.W.

AU - Scanlan, R.M.

AU - Nijhuis, Arend

AU - ten Kate, Herman H.J.

AU - Kim, S.W.

AU - Wake, M.

AU - Shintomi, T.

PY - 1999

Y1 - 1999

N2 - Presented in this work are the results of directly measured and AC-loss-derived interstrand contact resistance (ICR) measurements performed magnetically or resistively on bare-Cu and coated-strand pairs, calorimetrically on 11-strand Rutherford cables wound with strands that had been coated with various metallic and insulating layers, and calorimetrically and magnetically on 28-strand Rutherford cables (LHC-type) wound with bare-Cu-, Ni-, and stabrite-plated strands. Comparisons are made of the effects of various conditions of heat treatment, HT (time and temperature), and pressure (applied during HT and then either maintained or re-applied during measurement). The resulting ICRs are compared and interpreted in terms of the oxide layer on the strand coating and its response to curing conditions.

AB - Presented in this work are the results of directly measured and AC-loss-derived interstrand contact resistance (ICR) measurements performed magnetically or resistively on bare-Cu and coated-strand pairs, calorimetrically on 11-strand Rutherford cables wound with strands that had been coated with various metallic and insulating layers, and calorimetrically and magnetically on 28-strand Rutherford cables (LHC-type) wound with bare-Cu-, Ni-, and stabrite-plated strands. Comparisons are made of the effects of various conditions of heat treatment, HT (time and temperature), and pressure (applied during HT and then either maintained or re-applied during measurement). The resulting ICRs are compared and interpreted in terms of the oxide layer on the strand coating and its response to curing conditions.

KW - Superconductors

KW - IR-73977

KW - METIS-128833

KW - Multifilament wires and tapes

KW - AC losses

U2 - 10.1016/S0011-2275(99)00021-1

DO - 10.1016/S0011-2275(99)00021-1

M3 - Article

SN - 0011-2275

VL - 39

SP - 197

EP - 208

JO - Cryogenics

JF - Cryogenics

IS - 3

ER -