Effects of joining conditions on the structures and properties of joints of REBCO coated conductors

T. Maebatake; N. Mori; R. Teranishi; M. Mukaida; K. Yamada; M. Miura; M. Yoshizumi; T. Izumi

doi:10.1016/j.physc.2010.05.112

Effects of joining conditions on the structures and properties of joints of REBCO coated conductors

T. Maebatake, N. Mori, R. Teranishi, M. Mukaida, K. Yamada, M. Miura, M. Yoshizumi, T. Izumi

Advanced Materials Physics

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We investigated the joining of two REBCO (REBa₂Cu ₃O₇ _X, RE = Y, Gd) coated conductors using the diffusion joint process. REBCO coated conductors with stabilizing silver layer were joined by various joining conditions. Two pieces of the silver layer of tapes were overlapped in a face to face manner. Then, the pieces were pressurized and heat-treated at about 623-673 K under a pressure using some weights in oxygen atmosphere. Finally, the joint resistivity was obtained as low as about 10 nΩcm² by 10 MPa for YBCO tape. The joint resistivity of the GdBCO tape was 50-60 nΩ cm², which was higher than YBCO, but improved to 37 nΩ cm² at 10 MPa by improving the joining conditions. Influences of joining conditions such as pressure and evenness of specimens and holders were investigated on joint adhesion and resistivity.

Original language	English
Pages (from-to)	1358-1360
Number of pages	3
Journal	Physica C: Superconductivity and its applications
Volume	470
Issue number	20
DOIs	https://doi.org/10.1016/j.physc.2010.05.112
Publication status	Published - Nov 1 2010

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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Effects of joining conditions on the structures and properties of joints of REBCO coated conductors. / Maebatake, T.; Mori, N.; Teranishi, R.; Mukaida, M.; Yamada, K.; Miura, M.; Yoshizumi, M.; Izumi, T.

In: Physica C: Superconductivity and its applications, Vol. 470, No. 20, 01.11.2010, p. 1358-1360.

Research output: Contribution to journal › Article › peer-review

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abstract = "We investigated the joining of two REBCO (REBa2Cu 3O7 X, RE = Y, Gd) coated conductors using the diffusion joint process. REBCO coated conductors with stabilizing silver layer were joined by various joining conditions. Two pieces of the silver layer of tapes were overlapped in a face to face manner. Then, the pieces were pressurized and heat-treated at about 623-673 K under a pressure using some weights in oxygen atmosphere. Finally, the joint resistivity was obtained as low as about 10 nΩcm2 by 10 MPa for YBCO tape. The joint resistivity of the GdBCO tape was 50-60 nΩ cm2, which was higher than YBCO, but improved to 37 nΩ cm2 at 10 MPa by improving the joining conditions. Influences of joining conditions such as pressure and evenness of specimens and holders were investigated on joint adhesion and resistivity.",

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AU - Maebatake, T.

AU - Mori, N.

AU - Teranishi, R.

AU - Mukaida, M.

AU - Yamada, K.

AU - Miura, M.

AU - Yoshizumi, M.

AU - Izumi, T.

PY - 2010/11/1

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