Fabrication of Meter-Long Coated Conductor Using RABiTS-PVD Methods

Abstract

The practical application of HTS materials in power devices requires the HTS conductor which is long, powerful (high current carrying), and affordable. Many different methods for making practical coated conductor include multiple ways of obtaining texture templates and a variety of film deposition methods which include both physical and chemical routes. In this work, three film deposition systems (pulsed laser deposition, sputtering, and evaporation) equipped with reel-to-reel metal tape moving apparatus were installed and used to make meter-long coated conductor. Buffer architecture of CeO 2 YSZ Y 2 O 3 was continuously deposited on Ni alloy using sputtering, evaporation, and PLD. YBCO superconducting layer was continuously deposited on buffered metal tape by pulsed laser deposition. End-to-end critical current I c of 80 A and critical current density J c of 1.3 MA cm 2 for 600 nm-thick YBCO at 77 K, self-field have been achieved in 1 cm-wide tape over 1 meter length. Longitudinal distribution of the I c values was between 72 A/cm and 90 A/cm.Index Terms-Coated conductor, physical vapor deposition (PVD), reel-to-reel (R2R), rolling-assisted biaxially textured substrate (RABiTS), superconducting films, YBCO.

The comparative study of magnetic properties for YBCO coated conductors based on RABiTS and IBAD templates

“…The preparation of the REBCO-CCs has been described in detail elsewhere [19,20]. Two pieces (4 mm  4 mm  0.1 mm (with $1 lm YBCO)) of YBCO-CCs which are based on RABiTS and IBAD, respectively, were used as the samples for magnetization studies.…”

Transport Alternating Current Losses of BSCCO and YBCO Tapes

“…In applications, however, the transport current loss is also very important, because in most of the applications, the HTS tapes are used as a current carrying conductor. This paper deals with transport current losses of several commercially available and home made BSCCO tapes and YBCO tapes fabricated by IBAD-PLD and RABiTS-PLD methods [4].…”

Characteristics Measurements of HTS Tape with Parallel HTS Tapes

“…In this study, a home made YBCO tape which is developing step was used, therefore, the value of critical current is lower than that of other commercial YBCO tapes [3]. In case of the HTS tapes with neighbored Ni tape, the critical currents are slightly decreased as 66.…”

“…We measured the critical current and transport current loss of BSCCO tape and YBCO coated conductors that are fabricated with PIT method and RABiTS/PLD [3].…”