The Structural Evolution of (Gd, Y)Ba2Cu3Ox Tapes With Zr Addition Made by Metal Organic Chemical Vapor Deposition

被引：10

作者：

Lei, Changhui ^{[1
]}

Galstyan, Eduard ^{[2
,3
]}

Chen, Yimin ^{[1
]}

Shi, Tuo ^{[2
,3
]}

Liu, Yuhao ^{[2
,3
]}

Khatri, Narayan ^{[2
,3
]}

Liu, Jingfu ^{[2
,3
]}

Xiong, Xuming ^{[1
]}

Majkic, Goran ^{[2
,3
]}

Selvamanickam, Venkat ^{[2
,3
]}

机构：

[1] SuperPower Inc, Schenectady, NY 12304 USA

[2] Univ Houston, Dept Mech Engn, Houston, TX 77204 USA

[3] Univ Houston, Texas Ctr Superconduct, Houston, TX 77204 USA

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2013年 / 23卷 / 03期

关键词：

2G high-temperature superconductor (HTS); Metal organic chemical vapor deposition (MOCVD); microstructure; pinning effect; transmission electron microscopy (TEM);

D O I：

10.1109/TASC.2013.2243193

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Structural analysis of (Gd, Y) Ba2Cu3Ox tapes with Zr addition made by metal organic chemical vapor deposition has been conducted with transmission electron microscopy and X-ray diffraction. Zr content in the films was varied from 0 to 25% in the precursor. In all Zr-doped films, self-assembled nanocolumnar structures of BaZrO3 (BZO) were observed along the c-axis. The amount of BaZrO3 was found to increase steadily with Zr content. Additionally, planar BZO plates were found on the (001) plane of (Gd, Y) Ba2Cu3Ox film. The size and thickness of BZO plates were seen to increase with Zr doping level. Rare-earth copper oxide phases were observed to begin to emerge in the 20% Zr-doped film. Cross-sectional study of the interface between (Gd, Y)Ba2Cu3Ox and LaMnO3 cap layer revealed a thin discrete BZO layer on the LaMnO3 in the 20% Zr doped film.

引用

页数：4

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