A simple one-step heat treatment process for preparing biaxially textured buffer layers on rolled Ni tape for high Tc coated conductors’ application
✍ Scribed by S.S. Wang; Z. Han; S. Chen; K. Shi; L. Liu; Q. Liu
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 427 KB
- Volume
- 418
- Category
- Article
- ISSN
- 0921-4534
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✦ Synopsis
Fabrication of YBCO films on metal tapes by a full solution method is a promising technique for industrial application. For this process, the fabrication of suitably textured buffer layers is very important. In this paper, we report a new simple one-step heat treatment process, namely by the simultaneous texture (STEX) technique, for formation of textured buffer layers on cold rolled Ni tape by a sol-gel method. CeO 2 and Ba 0.5 Sr 0.5 TiO 3 (BST) buffer layers have been prepared using this new process. X-ray diffraction analyses show that the buffer layers are highly c-axis oriented. The FWHM values for x and / scans of the CeO 2 films are 4.09°(Ni: 4.77°) and 6.04°(Ni: 5.63°). The FWHM values for x and / scans of BST films are 8.01°(Ni: 7.78°) and 8.55°(Ni: 7.16°). A {1 0 0}h0 0 1i-cube texture was also formed in the rolled Ni substrate during the STEX process, indicating cube-on-cube texture formation by only a one-step annealing treatment. The possible mechanisms relating to cube-on-cube texture formation by a one-step annealing treatment are discussed.