DocumentCode :
1076267
Title :
Preparation of Cube Textured Ni5W/Ni9W Composite Substrate for YBCO Coated Conductors
Author :
Suo, Hongli ; Zhao, Yue ; Liu, Min ; Ma, Lin ; He, Dong ; Zhang, YingXiao ; Zhou, Meiling
Author_Institution :
Beijing Univ. of Technol., Beijing
Volume :
17
Issue :
2
fYear :
2007
fDate :
6/1/2007 12:00:00 AM
Firstpage :
3420
Lastpage :
3423
Abstract :
The mechanically strengthened, highly cube textured Ni-5 at.%W (Ni5W)/Ni-9.3 at.%W (Ni9W) composite substrates have been developed as a possible low magnetic and reinforced substrate for coated conductors. The key configuration of this composite substrate was the use of a thin but sharp cube textured Ni5W out-layer on a Ni9W alloy core that ensures the mechanical reinforcement while reducing the magnetism of whole substrate. The prepared composite tapes had a sharp and pure cube texture in the top Ni5W layer. The percentage of the cube texture component was as high as 92% within a misorientation angle of less than 8deg from EBSD measurement. The Ni5W surface of the composite substrate was very smooth and a roughness (RMS) of 22 nm was obtained. The yield strength of textured composite substrate was 210 MPa, 60 MPa higher than that of the Ni-5 at.% W substrate, while the magnetization of the whole substrate was dramatically reduced.
Keywords :
composite materials; magnetisation; materials preparation; nickel alloys; substrates; tungsten alloys; yield strength; NiW-NiW; YBCO coated conductors; cube textured composite substrate; low magnetic substrate; magnetization; mechanical reinforcement; misorientation angle; pure cube texture; yield strength; Annealing; Conductors; Helium; Magnetic cores; Magnetic properties; Materials science and technology; Nickel alloys; Production; Rough surfaces; Yttrium barium copper oxide; Coated conductor; reinforced nonmagnetic substrates; textured composite substrates;
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2007.899594
Filename :
4278291
Link To Document :
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