Advancing YBCO‐Coated Conductors for Use on Air Platforms

With progress of the YBCO-coated conductor to longer lengths, application of the conductor is nearing. An overview of a couple of current U.S. Air Force application programs is presented. A discussion is then made of where research and development of the YBCO-coated conductor should progress and examples in the U.S. Air Force program. These areas include magnetic flux pinning in YBCO thin films, reduction of the ac losses experienced in the YBCO conductor, and stability and quench issues when implementing the YBCO-coated conductor.

[1]  Donald U. Gubser,et al.  Superconducting motors and generators for naval applications , 2003 .

[2]  I. Glebov,et al.  High efficiency and low consumption material electrical generators , 1983 .

[3]  C. T. Reis,et al.  Scale up of applications-ready practical Y-Ba-Cu-O coated conductors , 2005, IEEE Transactions on Applied Superconductivity.

[4]  Basic Theory of an All-Superconducting Generator , 2007, IEEE Transactions on Applied Superconductivity.

[5]  Wei Zhang,et al.  Second generation HTS wire based on RABiTS substrates and MOD YBCO , 2005, IEEE Transactions on Applied Superconductivity.

[6]  E. W. Collings,et al.  AC loss in striped (filamentary) YBCO coated conductors leading to designs for high frequencies and field-sweep amplitudes , 2004, cond-mat/0410300.

[7]  Naoyuki Amemiya,et al.  AC loss reduction of YBCO coated conductors by multifilamentary structure , 2004 .

[8]  Pradeep Haldar,et al.  Flux pinning enhancement in YBa2Cu3O7−x films with BaSnO3 nanoparticles , 2006 .

[9]  Q. X. Jia,et al.  Strongly enhanced current densities in superconducting coated conductors of YBa2Cu3O7–x + BaZrO3 , 2004, Nature materials.

[10]  T. Haugan,et al.  Time-resolved magneto-optical imaging of Y1Ba2Cu3O7−δ thin films in high-frequency AC current regime , 2006 .

[11]  Michael Sumption,et al.  Hysteretic loss reduction in striated YBCO , 2002 .

[12]  P.N. Barnes,et al.  Compact, lightweight, superconducting power generators , 2005, IEEE Transactions on Magnetics.

[13]  T. Haugan,et al.  Minute doping with deleterious rare earths in YBa2Cu3O7−δ films for flux pinning enhancements , 2006 .

[14]  T. Haugan,et al.  Controlled introduction of flux pinning centers in YBa2Cu3O7−x films during pulsed-laser deposition , 2005 .

[15]  Dominic F. Lee,et al.  High-Performance High-Tc Superconducting Wires , 2006, Science.

[16]  Gregory L. Rhoads,et al.  Review of high power density superconducting generators: Present state and prospects for incorporating YBCO windings , 2005 .

[17]  M. Sumption,et al.  Addition of nanoparticle dispersions to enhance flux pinning of the YBa2Cu3O7-x superconductor , 2004, Nature.

[18]  L. Schultz,et al.  Formation of nanosized BaIrO3 precipitates and their contribution to flux pinning in Ir-doped YBa2Cu3O7−δ quasi-multilayers , 2005 .

[19]  D. Aized,et al.  ac losses in a YBa2Cu3O7−x coil , 2006 .

[20]  J. Reeves,et al.  Stability and quench protection of coated YBCO "Composite" tape , 2005, IEEE Transactions on Applied Superconductivity.

[21]  A.J. Rodenbush,et al.  Performance of high temperature superconducting coils for implementation into megawatt class generators , 1999, IEEE Transactions on Applied Superconductivity.

[22]  W. J. Carr,et al.  Hysteresis loss in a coated conductor subject to a combined applied magnetic field and transport current , 2006 .