In Situ EBSD Study of Stable Cube Texture in an Advanced Composite Substrate Used in YBCO-Coated Conductors

Yaotang Ji; Hongli Suo; ZiLi Zhang; Lin Ma; Jiazhi Li; Chenxi Zhang; Xinyu Wu; Shaheen Kausar; Jin Cui; Min Liu; Yi Wang; Qiuliang Wang

doi:10.1017/S1431927620001415

In Situ EBSD Study of Stable Cube Texture in an Advanced Composite Substrate Used in YBCO-Coated Conductors

Microsc Microanal. 2020 Jun;26(3):365-372. doi: 10.1017/S1431927620001415.

Authors

Yaotang Ji¹, Hongli Suo¹, ZiLi Zhang², Lin Ma¹, Jiazhi Li¹, Chenxi Zhang¹, Xinyu Wu¹, Shaheen Kausar^{1

3}, Jin Cui¹, Min Liu¹, Yi Wang¹, Qiuliang Wang²

Affiliations

¹ Key Laboratory of Advanced Functional Materials, Ministry of Education, College of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing100124, China.
² Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing100190, China.
³ Department of Physics, Jinnah College for Women, University of Peshawar, Peshawar25120, Khyber Pakhtunkhwa, Pakistan.

PMID: 32321618
DOI: 10.1017/S1431927620001415

Abstract

Advanced Ni8W/Ni12W/Ni8W alloy composite substrates used in YBCO-coated conductors with a strong cube texture and high yield strength have been fabricated, and a CeO2 buffer layer film was successfully deposited on the composite substrates. Through in situ tensile testing coupled with electron backscattered diffraction (EBSD) analysis, the stability of the cube texture of Ni8W/Ni12W/Ni8W alloy composite substrates has been investigated. The stress-strain curve shows that the yield strength (at 0.2% strain) of the composite substrates exceeds 250 Mpa. The orientation of grains and boundaries on the surface of the substrates was almost unchanged, while the strain exceeds 0.2%, which indicated that the composite substrates are adequate for depositing buffer layers and YBCO layers by the reel-to-reel process.

Keywords: EBSD; composite substrate; cube texture; in situ; tensile.