Epitaxial Growth of La2Zr2O7 Buffer Layer on Textured Ni5W Substrate by the Nitrate Route

doi:10.3724/SP.J.1077.2011.00481

Journal of Inorganic Materials ›› 2011, Vol. 26 ›› Issue (5): 481-485.DOI: 10.3724/SP.J.1077.2011.00481

• Research Paper • Previous Articles Next Articles

Epitaxial Growth of La₂Zr₂O₇ Buffer Layer on Textured Ni5W Substrate by the Nitrate Route

CHENG Yan-Ling, SUO Hong-Li, LIU Min, MA Lin, ZHANG Teng

(Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing 100124, China)

Received:2010-07-12 Revised:2010-08-30 Published:2011-05-20 Online:2011-06-07
Supported by:
National Basic Research Program 973 of China (2006CB601005); National High Technology Research and Development Program 863 of China (2009AA032401); National Natural Science Foundation of China (50771003, 50802004); Beijing Municipal Natural Science Foundation (2092006)

Abstract

Abstract: La₂Zr₂O₇(LZO) buffer layer was prepared on the cube textured nickel alloy substrate with the nitrate as the precursor salts. Combine with the analysis of the thermal pyrolysis property of the precursor salts, and the study of epitaxial growth of LZO films on both of the LAO single crystal and the Ni5W alloy substrate, a optimized processing route is achieved, which is two step heating ways at low temperature together with the ramp heat treatment at high temperature. It is concluded that the pyrolysis process plays the most important role in the texture epitaxy. The orientation analyses reveal the formation of a cube texture, with the FWHM of (222) phi scan and the (400) ω scan of 8.5° and 8.1°, respectively. The SEM image shows the dense and homogeneous film without cracks and holes. The discussions above indicate that the nitrate route is feasible for the preparation of the LZO buffer layer.

Key words: nitrate, epitaxy, LaB2BZrB2BOB7B, Ni5W substrate, cube texture, coated conductor

CLC Number:

TM26

CHENG Yan-Ling, SUO Hong-Li, LIU Min, MA Lin, ZHANG Teng. Epitaxial Growth of La₂Zr₂O₇ Buffer Layer on Textured Ni5W Substrate by the Nitrate Route[J]. Journal of Inorganic Materials, 2011, 26(5): 481-485.

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Epitaxial Growth of La₂Zr₂O₇ Buffer Layer on Textured Ni5W Substrate by the Nitrate Route

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