Abstract
A new method of strongly biaxial-textured Ni substrate for YBCO coated conductor has been developed by electrodeposition using cube-textured cathode such as Ni single crystal, RaBiTS-processed Ni or Ni-W tape. Electrodeposited Ni layers using Ni single crystal as a cathode were characterized with /spl theta/-scan and /spl phi/-scan methods, and it showed excellent out-of-plane (/spl Delta//spl theta/=1.6/spl deg/) and in-plane alignment (/spl Delta//spl phi/=3.6/spl deg/). In addition, electrodeposited Ni layers using RaBiTS tape as a cathode show good biaxial texture (/spl Delta//spl theta/=5.7/spl deg/,/spl Delta//spl phi/=9.6/spl deg/) and smooth surface. XRD characterization shows that biaxial texture of cathode was transferred to electrodeposit and texture of electrodeposited Ni layers changes with deposition time. Finally, a CeO/sub 2/ buffer layer has been deposited by MOD process to show the compatibility of substrate with further buffer layer processing. Our modified electrodeposition process shows good possibility of providing a simple and effective way to high quality cube-textured Ni substrates for YBCO coated conductor.
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