Near net shape processing of RE-Ba-Cu-O bulk superconductor by machining binder-added precursors

M. Fujikura, S. Nariki, Naomichi Sakai, I. Hirabayashi, Masato Murakami

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Several practical applications of melt-textured bulk superconductors require the complex-shaped products such as curved, ring-shaped, and drilled blocks rather than simple shaped pellets. In general, complex-shaped bulk products are prepared by machining melt-grown massive blocks. However, melt-textured bulks are often damaged when they are mechanically machined. With the aim of reducing such damages, we have investigated the preparation of the complex-shaped bulk superconductors by previously machining the precursors compacted with organic binders. The mixed powders of Y123 and Y211 were pressed into pellets, for which the organic binder was added are machined into complex-shaped bodies. After removal of the organic components, melt-processing was performed in air, which led to a reproducible fabrication of complex-shaped bulk products. The superconducting properties were not degraded with this process.

Original languageEnglish
Pages (from-to)527-531
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume426-431
Issue numberI
DOIs
Publication statusPublished - 2005 Oct 1

Fingerprint

machining
Superconducting materials
Binders
Machining
pellets
products
Processing
Powders
Fabrication
Air
damage
preparation
fabrication
rings
air

Keywords

  • Binder
  • Bulk superconductor
  • Melt-processing
  • Y-Ba-Cu-O

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Near net shape processing of RE-Ba-Cu-O bulk superconductor by machining binder-added precursors. / Fujikura, M.; Nariki, S.; Sakai, Naomichi; Hirabayashi, I.; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 426-431, No. I, 01.10.2005, p. 527-531.

Research output: Contribution to journalArticle

@article{b935e91f76a04e35b857684b19c6c52f,
title = "Near net shape processing of RE-Ba-Cu-O bulk superconductor by machining binder-added precursors",
abstract = "Several practical applications of melt-textured bulk superconductors require the complex-shaped products such as curved, ring-shaped, and drilled blocks rather than simple shaped pellets. In general, complex-shaped bulk products are prepared by machining melt-grown massive blocks. However, melt-textured bulks are often damaged when they are mechanically machined. With the aim of reducing such damages, we have investigated the preparation of the complex-shaped bulk superconductors by previously machining the precursors compacted with organic binders. The mixed powders of Y123 and Y211 were pressed into pellets, for which the organic binder was added are machined into complex-shaped bodies. After removal of the organic components, melt-processing was performed in air, which led to a reproducible fabrication of complex-shaped bulk products. The superconducting properties were not degraded with this process.",
keywords = "Binder, Bulk superconductor, Melt-processing, Y-Ba-Cu-O",
author = "M. Fujikura and S. Nariki and Naomichi Sakai and I. Hirabayashi and Masato Murakami",
year = "2005",
month = "10",
day = "1",
doi = "10.1016/j.physc.2005.02.061",
language = "English",
volume = "426-431",
pages = "527--531",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",
number = "I",

}

TY - JOUR

T1 - Near net shape processing of RE-Ba-Cu-O bulk superconductor by machining binder-added precursors

AU - Fujikura, M.

AU - Nariki, S.

AU - Sakai, Naomichi

AU - Hirabayashi, I.

AU - Murakami, Masato

PY - 2005/10/1

Y1 - 2005/10/1

N2 - Several practical applications of melt-textured bulk superconductors require the complex-shaped products such as curved, ring-shaped, and drilled blocks rather than simple shaped pellets. In general, complex-shaped bulk products are prepared by machining melt-grown massive blocks. However, melt-textured bulks are often damaged when they are mechanically machined. With the aim of reducing such damages, we have investigated the preparation of the complex-shaped bulk superconductors by previously machining the precursors compacted with organic binders. The mixed powders of Y123 and Y211 were pressed into pellets, for which the organic binder was added are machined into complex-shaped bodies. After removal of the organic components, melt-processing was performed in air, which led to a reproducible fabrication of complex-shaped bulk products. The superconducting properties were not degraded with this process.

AB - Several practical applications of melt-textured bulk superconductors require the complex-shaped products such as curved, ring-shaped, and drilled blocks rather than simple shaped pellets. In general, complex-shaped bulk products are prepared by machining melt-grown massive blocks. However, melt-textured bulks are often damaged when they are mechanically machined. With the aim of reducing such damages, we have investigated the preparation of the complex-shaped bulk superconductors by previously machining the precursors compacted with organic binders. The mixed powders of Y123 and Y211 were pressed into pellets, for which the organic binder was added are machined into complex-shaped bodies. After removal of the organic components, melt-processing was performed in air, which led to a reproducible fabrication of complex-shaped bulk products. The superconducting properties were not degraded with this process.

KW - Binder

KW - Bulk superconductor

KW - Melt-processing

KW - Y-Ba-Cu-O

UR - http://www.scopus.com/inward/record.url?scp=25444511068&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=25444511068&partnerID=8YFLogxK

U2 - 10.1016/j.physc.2005.02.061

DO - 10.1016/j.physc.2005.02.061

M3 - Article

AN - SCOPUS:25444511068

VL - 426-431

SP - 527

EP - 531

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - I

ER -