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Title: Ultra-High Performance, High-Temperature Superconducting Wires via Cost-effective, Scalable, Co-evaporation Process

Abstract

Long-length, high-temperature superconducting (HTS) wires capable of carrying high critical current, Ic, are required for a wide range of applications. Here, we report extremely high performance HTS wires based on 5 m thick SmBa2Cu3O7- (SmBCO) single layer films on textured metallic templates. SmBCO layer wires over 20 meters long were deposited by a cost-effective, scalable co-evaporation process using a batch-type drum in a dual chamber. All deposition parameters influencing the composition, phase, and texture of the films were optimized via a unique combinatorial method that is broadly applicable for co-evaporation of other promising complex materials containing several cations. Thick SmBCO layers deposited under optimized conditions exhibit excellent cube-on-cube epitaxy. Such excellent structural epitaxy over the entire thickness results in exceptionally high Ic performance, with average Ic over 1000 A/cm for the entire 22 meter long wire and maximum Ic over 1,500 A/cm for a short 12 cm long tape. The Ic values reported in this work are the highest values ever reported from any lengths of cuprate-based HTS wire or conductor.

Authors:
 [1];  [1];  [1];  [1];  [1];  [2];  [3];  [2];  [4];  [4]
  1. Korea Electrotechnology Research Institute
  2. University of Wollongong, Australia
  3. Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
  4. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
OE USDOE - Office of Electric Transmission and Distribution
OSTI Identifier:
1185353
DOE Contract Number:
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Scientific Reports; Journal Volume: 4; Journal Issue: 4744
Country of Publication:
United States
Language:
English

Citation Formats

Kim, Dr. Hosup, Oh, Sang-Soo, Ha, HS, Youm, D, Moon, SH, Kim, JH, Heo, YU, Dou, SX, Wee, Sung Hun, and Goyal, Amit. Ultra-High Performance, High-Temperature Superconducting Wires via Cost-effective, Scalable, Co-evaporation Process. United States: N. p., 2014. Web. doi:10.1038/srep04744.
Kim, Dr. Hosup, Oh, Sang-Soo, Ha, HS, Youm, D, Moon, SH, Kim, JH, Heo, YU, Dou, SX, Wee, Sung Hun, & Goyal, Amit. Ultra-High Performance, High-Temperature Superconducting Wires via Cost-effective, Scalable, Co-evaporation Process. United States. doi:10.1038/srep04744.
Kim, Dr. Hosup, Oh, Sang-Soo, Ha, HS, Youm, D, Moon, SH, Kim, JH, Heo, YU, Dou, SX, Wee, Sung Hun, and Goyal, Amit. Wed . "Ultra-High Performance, High-Temperature Superconducting Wires via Cost-effective, Scalable, Co-evaporation Process". United States. doi:10.1038/srep04744.
@article{osti_1185353,
title = {Ultra-High Performance, High-Temperature Superconducting Wires via Cost-effective, Scalable, Co-evaporation Process},
author = {Kim, Dr. Hosup and Oh, Sang-Soo and Ha, HS and Youm, D and Moon, SH and Kim, JH and Heo, YU and Dou, SX and Wee, Sung Hun and Goyal, Amit},
abstractNote = {Long-length, high-temperature superconducting (HTS) wires capable of carrying high critical current, Ic, are required for a wide range of applications. Here, we report extremely high performance HTS wires based on 5 m thick SmBa2Cu3O7- (SmBCO) single layer films on textured metallic templates. SmBCO layer wires over 20 meters long were deposited by a cost-effective, scalable co-evaporation process using a batch-type drum in a dual chamber. All deposition parameters influencing the composition, phase, and texture of the films were optimized via a unique combinatorial method that is broadly applicable for co-evaporation of other promising complex materials containing several cations. Thick SmBCO layers deposited under optimized conditions exhibit excellent cube-on-cube epitaxy. Such excellent structural epitaxy over the entire thickness results in exceptionally high Ic performance, with average Ic over 1000 A/cm for the entire 22 meter long wire and maximum Ic over 1,500 A/cm for a short 12 cm long tape. The Ic values reported in this work are the highest values ever reported from any lengths of cuprate-based HTS wire or conductor.},
doi = {10.1038/srep04744},
journal = {Scientific Reports},
number = 4744,
volume = 4,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 2014},
month = {Wed Jan 01 00:00:00 EST 2014}
}
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