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, N.
AU - Hirabayashi, I.
AU - Murakami, M.
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 - Conference article
AN - SCOPUS:25444511068
SN - 0921-4534
VL - 426-431
SP - 527
EP - 531
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
IS - I
T2 - Proceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity
Y2 - 23 November 2004 through 25 November 2004
ER -