Welding of Y-Ba-Cu-O Bulk Superconductors Using Superconducting Er-Ba-Cu-O Solder

We have succeeded in producing a strongly coupled superconducting Y-Ba-Cu-O joint by combining the control of crystal growth along the ‹110› direction and employment of a highly dense Er-Ba-Cu-O sintered solder. No segregation of the secondary phase and residual liquid phase was observed at the join...

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Veröffentlicht in:TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) 2002/11/25, Vol.37(11), pp.637-644
Hauptverfasser: IIDA, Kazumasa, YOSHIOKA, Junko, SAKAI, Naomichi, MURAKAMI, Masato
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container_title TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)
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creator IIDA, Kazumasa
YOSHIOKA, Junko
SAKAI, Naomichi
MURAKAMI, Masato
description We have succeeded in producing a strongly coupled superconducting Y-Ba-Cu-O joint by combining the control of crystal growth along the ‹110› direction and employment of a highly dense Er-Ba-Cu-O sintered solder. No segregation of the secondary phase and residual liquid phase was observed at the joint, which led to the formation of a strongly connected superconducting joint. Microstructural observation showed that many triangular crystals grew from the mother block in the (110)/(110)-joint, while the growth front was parallel to the (100) surfaces in the (100)/(100)-joint. Such a discrepancy was ascribed to the difference in the superconducting properties of the joints.
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subjects Er-Ba-Cu-O
junction
superconductor
welding
Y-Ba-Cu-O
title Welding of Y-Ba-Cu-O Bulk Superconductors Using Superconducting Er-Ba-Cu-O Solder
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