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CEC-ICMC 2017 - Abstracts, Timetable and Presentations

9–13 Jul 2017
Monona Terrace Community and Convention Center
US/Central timezone

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Session

M3OrB - Superconductors III: Measurements, Mechanical, Electrical, Stability, AC Loss

M3OrB
12 Jul 2017, 09:30
Hall of Ideas - EH

Hall of Ideas - EH

Conveners

M3OrB - Superconductors III: Measurements, Mechanical, Electrical, Stability, AC Loss

  • Naoyuki Amemiya (Kyoto University)
  • Takanobu Kiss (Kyushu University)

Presentation materials

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  1. 583. Measurements of YBCO Cable at High dB/dt for various HTS cables
    Mike Sumption (The Ohio State University)
    12/07/2017, 09:30
    Contributed Oral Presentation

    In this work, segment of various HTS cables were measured for loss at high dB/dt in a rotating magnet AC loss machine. The cables types including CORC, Roebel, and TWST cables, and for the CORC cables, striations were present for some samples. The cable were measured in a recently described spinning magnet calorimeter (SMC). This test device has a spinning rotor which consists of permanent...

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  2. 234. Development of stable, low resistance solder joints for space-flight HTS lead assemblies
    Dr Edgar Canavan (NASA–Goddard Space Flight Center)
    12/07/2017, 09:45
    Contributed Oral Presentation

    The solder joints in spaceflight high temperature superconductor (HTS) lead assemblies for certain astrophysics missions have strict constraints on size and power dissipation. In addition, the joints must tolerate years of storage at room temperature, many thermal cycles, and several vibration tests between their manufacture and their final operation on orbit. As reported previously, solder...

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  3. 265. Loss Characteristics of Coated Conductors in Alternating Magnetic Fields: Dynamic Loss and Magnetisation Loss
    Prof. QUAN LI (University of Edinburgh)
    12/07/2017, 10:00
    Contributed Oral Presentation

    Coated conductors (CCs) have emerged as the dominant wires for HTS applications such as power cables, rotating machines and magnets. However they present a complicated heat load while carrying transport currents in external alternating magnetic fields, because power dissipates in the form of not only magnetisation loss, but also dynamic loss (transport loss). This makes accurate predictions of...

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  4. 295. Electromagnetic field analyses of cated conductors assembled into large-current cables
    Prof. Naoyuki Amemiya (Kyoto University)
    12/07/2017, 10:15
    Contributed Oral Presentation

    When coated conductors are assembled into a large-current cable such as Roebel cable or CORC cable, their electromagnetic behaviors are much more complicated than a single coated conductor: imbalance of strand-inductances might cause a non-uniform current distribution among coated conductors; the electomagnetic behavior of each coated conductor should be influenced by others. In this...

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  5. 395. REBCO Roebel cable stability, current sharing, and quench measurements in a liquid helium bath and applied magnetic fields up to 12 Tesla
    Chris Kovacs (The Ohio State University)
    12/07/2017, 10:30
    Oral Presentation

    A 9-tape (14mm width pre-cut, 4.9 mm post-cut) REBCO Roebel cable from Robinson Research Institute had MQE measured in a LHe bath at varying I/Ic in applied fields up to 12 Tesla. Quench was initiated using a 4.5 mm by 4.5 mm Nichrome film heater. Current sharing was monitored throughout the cable using transverse voltage taps and Tmax of the quench was measured with calibrated Type-E...

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