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The Progress on Low-Cost, High-Quality, High-Temperature Superconducting Tapes Deposited by the Combustion Chemical Vapor Deposition Process

Published online by Cambridge University Press:  18 March 2011

Shara S. Shoup
Affiliation:
MicroCoating Technologies, Inc., 5315 Peachtree Industrial Blvd., Atlanta, GA 30341
Marvis K. White
Affiliation:
MicroCoating Technologies, Inc., 5315 Peachtree Industrial Blvd., Atlanta, GA 30341
Steve L. Krebs
Affiliation:
MicroCoating Technologies, Inc., 5315 Peachtree Industrial Blvd., Atlanta, GA 30341
Natalie Darnell
Affiliation:
MicroCoating Technologies, Inc., 5315 Peachtree Industrial Blvd., Atlanta, GA 30341
Adam C. King
Affiliation:
MicroCoating Technologies, Inc., 5315 Peachtree Industrial Blvd., Atlanta, GA 30341
Dave S. Mattox
Affiliation:
MicroCoating Technologies, Inc., 5315 Peachtree Industrial Blvd., Atlanta, GA 30341
Ian H. Campbell
Affiliation:
MicroCoating Technologies, Inc., 5315 Peachtree Industrial Blvd., Atlanta, GA 30341
Ken R. Marken
Affiliation:
Oxford Superconducting Technology, 600 Milik Street, P.O. Box 429, Carteret, NJ 07008-0429
Seung Hong
Affiliation:
Oxford Superconducting Technology, 600 Milik Street, P.O. Box 429, Carteret, NJ 07008-0429
Bolek Czabaj
Affiliation:
Oxford Superconducting Technology, 600 Milik Street, P.O. Box 429, Carteret, NJ 07008-0429
M. Paranthaman
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831
Hans M. Christen
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831
Hong-Ying Zhai
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831
Eliot Specht
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831
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Abstract

The innovative Combustion Chemical Vapor Deposition (CCVD) process is a non-vacuum technique that is being investigated to enable next generation products in several application areas including high-temperature superconductors (HTS). In combination with the Rolling Assisted Biaxially Textured Substrate (RABiTS) technology, the CCVD process has significant promise to provide low-cost, high-quality lengths of YBCO coated conductor. The CCVD technology has been used to deposit both buffer layer coatings as well as YBCO superconducting layers. A buffer layer architecture of strontium titanate and ceria have been deposited by CCVD on textured nickel substrates and optimized to appropriate thicknesses and microstructures to provide templates for growing PLD YBCO with high critical current density values. The CCVD buffer layers have been scaled to meter plus lengths with good epitaxial uniformity along the length. A short sample cut from one of the lengths enabled high critical current density PLD YBCO. Films of CCVD YBCO superconductors have been grown on single crystal substrates with critical current densities over 1 MA/cm2. Work is currently in progress to combine both the buffer layer and superconductor technologies to produce high-quality coupons of HTS tape made entirely by the non-vacuum CCVD process.

Type
Research Article
Copyright
Copyright © Materials Research Society 2002

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