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Title: Processing of YBCO superconductors for improved levitation force

Abstract

One objective of the ANL superconductor program is to develop improved processing methods for production of YBCO superconductors with higher levitation forces suitable for low-friction, superconductor/permanent-magnet bearings and flywheel-energy-storage applications. From the standpoint of these applications, melt-processed bulk YBCO superconductors are of considerable interest. Levitation force and flux-pinning properties depend on microstructural features of the superconductors. We have added several chemical species to YBCO to alter the microstructure and have used a seeding technique to induce crystallization during melt processing. In this paper, we discuss the effects of various process parameters, additives, and a seeding technique on the properties of melt-processed bulk YBCO samples and compare the results with solid-state-sintered superconductors.

Authors:
;
Publication Date:
Research Org.:
Argonne National Lab., IL (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10188808
Report Number(s):
ANL/ET/CP-78724; CONF-931103-4
ON: DE94001326
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: Joint MMIJ/TMS international conference on processing materials for properties,Honolulu, HI (United States),7-10 Nov 1993; Other Information: PBD: May 1993
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; HIGH-TC SUPERCONDUCTORS; LEVITATION; PRODUCTION; YTTRIUM OXIDES; BARIUM OXIDES; COPPER OXIDES; 665412; SUPERCONDUCTING DEVICES

Citation Formats

Balachandran, U, and Zhong, W. Processing of YBCO superconductors for improved levitation force. United States: N. p., 1993. Web.
Balachandran, U, & Zhong, W. Processing of YBCO superconductors for improved levitation force. United States.
Balachandran, U, and Zhong, W. 1993. "Processing of YBCO superconductors for improved levitation force". United States. https://www.osti.gov/servlets/purl/10188808.
@article{osti_10188808,
title = {Processing of YBCO superconductors for improved levitation force},
author = {Balachandran, U and Zhong, W},
abstractNote = {One objective of the ANL superconductor program is to develop improved processing methods for production of YBCO superconductors with higher levitation forces suitable for low-friction, superconductor/permanent-magnet bearings and flywheel-energy-storage applications. From the standpoint of these applications, melt-processed bulk YBCO superconductors are of considerable interest. Levitation force and flux-pinning properties depend on microstructural features of the superconductors. We have added several chemical species to YBCO to alter the microstructure and have used a seeding technique to induce crystallization during melt processing. In this paper, we discuss the effects of various process parameters, additives, and a seeding technique on the properties of melt-processed bulk YBCO samples and compare the results with solid-state-sintered superconductors.},
doi = {},
url = {https://www.osti.gov/biblio/10188808}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat May 01 00:00:00 EDT 1993},
month = {Sat May 01 00:00:00 EDT 1993}
}

Conference:
Other availability
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