CEC-ICMC 2017 - Abstracts, Timetable and Presentations

Session

M3OrC - Focused Session: Latest Development in Flux Pinning III: Pinning, Critical Currents & Creep in HTS

M3OrC

12 Jul 2017, 11:00

Lecture Hall

Conveners

M3OrC - Focused Session: Latest Development in Flux Pinning III: Pinning, Critical Currents & Creep in HTS

• Hiroaki Kumakura (NIMS)
• Timothy Haugan (U.S. Air Force Research Laboratory)

555. [Invited] Interactive approach towards controllable generation of strong and isotropic artificial pinning centers in RE-123 films

Prof. Judy Wu (University of Kansas)

12/07/2017, 11:00

Invited Oral Presentation

Raising critical current density Jc in high temperature superconductors, such as YBa2Cu3O7 or RE-123 films, is important to performance-cost balanced conductor technology for commercialization. Development of strong nanoscale artificial pinning centers (APCs) in RE-123 films has led to significantly raised Jc in APC/RE-123 nanocomposites by enhanced pinning on magnetic vortices in moderate to...

270. Fabrication of 2G HTS wires with artificial pinning centres using production scale PLD system and characterisation of their superconducting properties

Mr Vsevolod Chepikov (SuperOx)

12/07/2017, 11:30

Contributed Oral Presentation

An industrial R&D programme is ongoing at SuperOx, aimed at improving 2G HTS wire performance in magnetic field. We introduce perovskite artificial pinning centres into the HTS layer matrix. In contrast to most studies described in the literature, we use the high rate production processing parameters and PLD equipment at SuperOx Japan. This paper reports the results of Phase 1 of this...

389. Towards isotropic vortex pinning in YBCO films with BHO-Y2O3 and BZO-Y2O3 artificial pining centers

Bibek Gautam*1 (1Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, USA)

12/07/2017, 11:45

Contributed Oral Presentation

Strong and isotropic vortex pinning landscape is demanded for high field applications of high temperature superconductor (HTS) thin film. Double-doping (DD) of different kinds of artificial pinning centers (APCs) has been identified as a promising approach to generate such a pinning landscape. This work presents a systematic study on the critical current density Jc(H, $\theta$) of 3%Y2O3+2-6...

164. Large critical current densities and pinning forces in CSD YxGd1-xBa2Cu3O7-BaHfO3 superconducting nanocomposite films

Dr PABLO CAYADO (Karlsruhe Institute of Technology (KIT))

12/07/2017, 12:00

Contributed Oral Presentation

After 25 years of development, several high-temperature superconductors (HTS) are becoming engineering materials commercially available as long-length wires. Among them, REBa2Cu3O6+y (REBCO, RE rare earth) compounds have emerged as excellent candidates for the manufacture of superconducting Coated Conductors (CCs) due to their high-field current carrying capacity. REBCO nanocomposites, based...

397. Influence of Zr addition on J¬c and flux creep in (Gd,Y)BCO tape

Cory Myers (Ohio State University)

12/07/2017, 12:15

Contributed Oral Presentation

Pinning centers have been introduced into (Gd,Y)BCO to increase critical current density, Jc, for applications. However, in addition to generating high magnetic fields (by possessing high Jc in the magnet windings), magnets used in accelerators should generate homogeneous and time-invariant magnetic fields. Flux creep has been shown to be significant in high temperature superconductors even at...

304. [Invited] Improvement of Jc of Nb3Sn conductors by introducing additional pinning centers

Xingchen Xu (Fermi National Accelerator Lab)

12/07/2017, 12:30

Invited Oral Presentation

Nb3Sn superconducting wires have been developed for nearly half a century and their record Jcs have plateaued since the early 2000s. The only opportunity for further significantly improving Jc of Nb3Sn conductors relative to the present state of the art lies in improving flux pinning capacity. In this talk efforts to improve pinning of Nb3Sn conductors by introducing additional pinning centers...