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Texture development of HTS powder-in-tube conductors

Abstract

An overview of the fabrication and electromagnetic properties of high-temperature conductors processed by the powder-in-tube (PIT) technique with reference to texture development and critical anisotropy data is presented. Special emphasis is given to the optimization of the physicochemical and electromagnetic parameters of the multifilamentary and single-filament conductors with superconducting cores of Bi-2223, Tl-1223 and Y-123 superconducting phases. The influence of the multifilamentary and single-filament structures on texture development is discussed. Also, the importance of the local disturbances of the grain alignment and microdefects for the current distribution across and in the plane of the whole conductor is analysed. A comparative study of the critical current anisotropy with field direction in low magnetic fields of Tl-1223 and Bi-2223 conductors manufactured by the PIT technique is presented. For Tl-1223 PIT conductors the anisotropy coefficient shows a very pronounced minimum, followed by a monotonic reduction of anisotropy with the increase of the magnetic field. This is explained in terms of poor grain alignment with weak intergranular superconducting coupling which cause 3D current percolation and also by the demagnetizing effect of the grains and the ceramic core in the PIT Tl-1223 tapes. (author)
Authors:
Glowacki, B A; [1]  Department of Materials Science and Metallurgy, University of Cambridge, Cambridge (United Kingdom)]
  1. IRC in Superconductivity, University of Cambridge, Cambridge (United Kingdom)
Publication Date:
Oct 01, 1998
Product Type:
Journal Article
Reference Number:
EDB-00:120378
Resource Relation:
Journal Name: Superconductor Science and Technology; Journal Volume: 11; Journal Issue: 10; Conference: Symposium on processing and critical current of high-temperature superconductors, Wagga Wagga (Australia), 2-4 Feb 1998; Other Information: Country of input: Uzbekistan; PBD: Oct 1998
Subject:
36 MATERIALS SCIENCE; ANISOTROPY; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CRITICAL CURRENT; CUPRATES; HIGH-TC SUPERCONDUCTORS; SINTERED MATERIALS; STRONTIUM COMPOUNDS; SUPERCONDUCTING CABLES; THALLIUM COMPOUNDS; YTTRIUM COMPOUNDS
OSTI ID:
20115430
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0953-2048; SUSTEF; TRN: GB00$2383059246
Availability:
Available online at the Web site for the journal Superconductor Science and Technology (ISSN 1361-6668) http://www.iop/org/;INIS
Submitting Site:
GBN
Size:
page(s) 989-994
Announcement Date:

Citation Formats

Glowacki, B A, and Department of Materials Science and Metallurgy, University of Cambridge, Cambridge (United Kingdom)]. Texture development of HTS powder-in-tube conductors. United Kingdom: N. p., 1998. Web. doi:10.1088/0953-2048/11/10/019.
Glowacki, B A, & Department of Materials Science and Metallurgy, University of Cambridge, Cambridge (United Kingdom)]. Texture development of HTS powder-in-tube conductors. United Kingdom. doi:10.1088/0953-2048/11/10/019.
Glowacki, B A, and Department of Materials Science and Metallurgy, University of Cambridge, Cambridge (United Kingdom)]. 1998. "Texture development of HTS powder-in-tube conductors." United Kingdom. doi:10.1088/0953-2048/11/10/019. https://www.osti.gov/servlets/purl/10.1088/0953-2048/11/10/019.
@misc{etde_20115430,
title = {Texture development of HTS powder-in-tube conductors}
author = {Glowacki, B A, and Department of Materials Science and Metallurgy, University of Cambridge, Cambridge (United Kingdom)]}
abstractNote = {An overview of the fabrication and electromagnetic properties of high-temperature conductors processed by the powder-in-tube (PIT) technique with reference to texture development and critical anisotropy data is presented. Special emphasis is given to the optimization of the physicochemical and electromagnetic parameters of the multifilamentary and single-filament conductors with superconducting cores of Bi-2223, Tl-1223 and Y-123 superconducting phases. The influence of the multifilamentary and single-filament structures on texture development is discussed. Also, the importance of the local disturbances of the grain alignment and microdefects for the current distribution across and in the plane of the whole conductor is analysed. A comparative study of the critical current anisotropy with field direction in low magnetic fields of Tl-1223 and Bi-2223 conductors manufactured by the PIT technique is presented. For Tl-1223 PIT conductors the anisotropy coefficient shows a very pronounced minimum, followed by a monotonic reduction of anisotropy with the increase of the magnetic field. This is explained in terms of poor grain alignment with weak intergranular superconducting coupling which cause 3D current percolation and also by the demagnetizing effect of the grains and the ceramic core in the PIT Tl-1223 tapes. (author)}
doi = {10.1088/0953-2048/11/10/019}
journal = {Superconductor Science and Technology}
issue = {10}
volume = {11}
journal type = {AC}
place = {United Kingdom}
year = {1998}
month = {Oct}
}