Significant improvement of the critical current of MOD-derived YBa2Cu3O7-δ -coated conductors by post-annealing treatment

被引：9

作者：

Chen, Jing ^{[1
]}

Huang, Rongtie ^{[1
,2
]}

Shen, Jiaji ^{[1
]}

Qian, Sida ^{[2
]}

Li, Minjuan ^{[1
]}

Fan, Feng ^{[1
,2
]}

Bai, Chuanyi ^{[1
,2
]}

Liu, Zhiyong ^{[1
,2
]}

Cai, Chuanbing ^{[1
,2
]}

机构：

[1] Shanghai Univ, Phys Dept, Shanghai Key Lab High Temp Superconductors, 99 Shangda Rd, Shanghai 200444, Peoples R China

[2] Shanghai Creat Superconductor Technol Co Ltd, Shanghai 201401, Peoples R China

来源：

APPLIED PHYSICS EXPRESS | 2021年 / 14卷 / 05期

基金：

中国国家自然科学基金;

关键词：

REBa(2)Cu3O7-d; metalorganic deposition (MOD; Y124-type SFs; post-annealing treatmen; critical current (Ic); TEMPERATURE; DECOMPOSITION; YBA2CU4O8; MECHANISM; FILMS;

D O I：

10.35848/1882-0786/abf4f0

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This paper reports that in REBa2Cu3O7-delta (RE123 or REBCO, RE = Y or rare earth)-coated conductors (CCs) prepared by ex situ metal-organic deposition (MOD), it is feasible to obtain YBa2Cu4O8-type stacking faults (Y124-type SFs) by a post-annealing treatment, and hence to improve its microstructures as well as the critical current (I (c)) at 77 K. Detailed studies show that the formation and evolution of Y124-type SFs plays an important role in I (c) improvement for MOD-derived YBCO CCs, with an increase of I (c)(77 K) as large as 50 similar to 120 A for samples 12 mm in width. This cost-effective approach implies great commercial value for scaled processing.

引用

页数：4

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