CEC/ICMC 2023 Abstracts & Technical Program

Session

M3Or3H: Special Session: Low Temperature Materials Database A Superconductors

Jul 12, 2023, 2:00 PM

319B

Conveners

M3Or3H: Special Session: Low Temperature Materials Database A Superconductors

• Shreyas Balachandran (Thomas Jefferson National Accelerator Facility)
• Karl Hartwig (Academic)

635. M3Or3H-01: Introduction

Shreyas Balachandran (Thomas Jefferson National Accelerator Facility)

7/12/23, 2:00 PM

474. M3Or3H-02: [Invited] The critical current and critical current density of MgB2 ultrafine superconducting wires and cables

Dr Akihiro Kikuchi (National Institute for Materials Science), Dr Hiroaki Kumakura (National Institute for Materials Science)

7/12/23, 2:10 PM

Invited Oral

We are ongoing R&D of ultra-fine MgB2 superconducting wires having a very small diameter much less than a human hair. These ultra-fine MgB2 wires could be bundled and fabricated easily into stranded cables for increasing the current capacity. In principle, the bending strain decreases with decreasing the wire diameter as well as the hysteresis loss. The stranded cables made by these...

476. M3Or3H-03: [Invited] Development of MgB2 superconductor wires, cables, coils and their applications

Dr Xuan Peng

7/12/23, 2:25 PM

Invited Oral

In this paper Hyper Tech Research will report on the development of magnesium diboride superconductor wires and cables including 1st generation, 2nd generation conductors and conductors with significantly lower AC losses. We will show that present day MgB2 conductors are usable for DC and AC applications such SMES, motors and generators. Superconducting and mechanical properties of strands and...

566. M3Or3H-04: [Invited] Electro-magnetic tape width of REBCO coated conductors characterized by reel-to-reel scanning Hall-probe magnetic microscopy

Takanobu Kiss

7/12/23, 2:40 PM

Invited Oral

Because of the tape architecture of the REBCO coated conductors (CCs), it is crucial to grasp the size of the tape width and its variation along the length for the design of magnets or coils. Geometrical size can be measured relatively easily by such techniques as laser microscopy or optical microscopy, however, the electromagnetic tape width, at where the superconducting current can flow, is...

558. M3Or3H-05: [Invited] Resistivity Measurements of Electric Conductors for High Power Machines and Magnets for a Full Range of Cryogenic Temperatures and Magnetic Fields

Thomas Bullard (UES, Inc.)

7/12/23, 2:55 PM

Invited Oral

The development of ultrahigh power density rotating machines is a research priority identified by electric aircraft programs worldwide, including ARPA-E, NASA, Airbus, and many others. There are many high field DC and AC magnet applications of such wires. One of the most important building blocks for these applications is the electric wire conductors. A complete scan of the resistivity of...

468. M3Or3H-06: [Invited] Database of VSM In-Field Performance of REBCO Coated Conductor at 4.2-77 K, 0-14 T

Goran Majkic

7/12/23, 3:10 PM

Invited Oral

We present results on a set of REBCO coated conductor samples characterized for their in-field performance using Vibrating Sample Magnetometry (VSM) over temperatures and fields of 4.2-77 K and 0-14 T. All REBCO samples contain Artificial Pinning Centers (APC) in the form of BMO nanorods (BMO¬3¬, M = Zr, Hf). Principal component analysis of VSM will be presented, identifying the main modes of...

489. M3Or3H-07: [Invited] Fabrication and transport properties of multifilament Cu/Ag/Ba-122 iron-based superconducting wires

Dongliang Wang (Institute of Electrical Engineering, CAS)

7/12/23, 3:25 PM

Invited Oral

Iron-based superconductors (IBS) are very promising candidates for high-field applications owning to their ultrahigh upper critical field (Hc2) and very small anisotropy. For such applications, it is essential to develop multifilamentary superconducting wires with high transport critical current density (Jc). Compared with the tape-sharped multifilamentary wires with high aspect ratio,...

636. M3Or3H-08: Discussion

7/12/23, 3:40 PM