无氟化学溶液法制备<strong>YBCO</strong>超导焊料的高温生长工艺研究

doi:10.11901/1005.3093.2024.381

材料研究学报

2025, Vol. 39

Issue (6): 474-480 DOI: 10.11901/1005.3093.2024.381

研究论文

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无氟化学溶液法制备YBCO超导焊料的高温生长工艺研究

韩磊磊¹, 王文涛¹^,²(

), 吴赟¹, 陈嘉俊¹, 赵勇¹^,³

^1.磁浮技术与磁浮列车教育部重点实验室西南交通大学材料科学与工程学院成都 610031
^2.西南交通大学电气工程学院成都 610031
^3.福建师范大学物理与能源学院福州 350117

High Temperature Growth Process of YBCO Superconducting Solder by Fluorine-free Chemical Solution Method

HAN Leilei¹, WANG Wentao¹^,²(

), WU Yun¹, CHEN Jiajun¹, ZHAO Yong¹^,³

^1.Key Laboratory of Magnetic Levitation and Maglev Trains (Ministry of Education of China), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
^2.School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China
^3.College of Physics and Energy, Fujian Normal University, Fuzhou 350117, China

引用本文:

韩磊磊, 王文涛, 吴赟, 陈嘉俊, 赵勇. 无氟化学溶液法制备YBCO超导焊料的高温生长工艺研究[J]. 材料研究学报, 2025, 39(6): 474-480.
Leilei HAN, Wentao WANG, Yun WU, Jiajun CHEN, Yong ZHAO. High Temperature Growth Process of YBCO Superconducting Solder by Fluorine-free Chemical Solution Method[J]. Chinese Journal of Materials Research, 2025, 39(6): 474-480.

全文: PDF(958 KB) HTML

摘要:

用无氟化学溶液法在YGdBCO带材超导层表面制备YBCO超导焊料，研究高温热处理对焊料结构和带材超导性能的影响。结果表明，将非晶前驱膜在795 ℃烧结1 h可获得(103)衍射峰较强且晶粒均匀分布的YBCO多晶膜。将多晶膜在820 ℃烧结30 min后可将其转化为具有(00l)取向的YBCO单晶膜即焊料。将表面有YBCO单晶膜的带材氧退火热处理后，其临界电流I_c与原带材接近，表明超导焊料的生长不影响带材的超导电性。

关键词 ：无机非金属材料, 高温生长工艺, 外延生长, YBCO膜, 微观形貌, 临界电流

Abstract：

YBCO superconducting solders were prepared on YGdBCO superconducting layers of tapes by fluorine-free chemical solution method. The effect of high temperature heat treatment on the structure of solders and superconducting properties of tape was investigated. The results show that the YBCO polycrystalline film with strong (103) diffraction peak and uniform grain distribution was obtained by sintering the amorphous precursor film at 795 ^oC for 1 h. Then the polycrystalline film was transformed into YBCO single crystal film (solder) with (00l) orientation after sintering it at 820 ^oC for 30 min. After annealing in oxygen, the critical current I_c of the tape deposited with YBCO single crystal film is close to that of the original tape, indicating no obvious influence of the growth of superconducting solder on the superconductivity of the tape.

Key words： inorganic non-metallic materials high temperature growth process epitaxial growth YBCO film microstructure critical current

收稿日期: 2024-09-05

ZTFLH:

TB34

基金资助:四川省自然科学基金(2025ZNSFSC0360);中央高校基本科研基金(2682022ZTPY086)

通讯作者: 王文涛，副研究员，wtwang@swjtu.edu.cn，研究方向为高温超导材料及应用

Corresponding author: WANG Wentao, Tel: (028)87600787, E-mail: wtwang@swjtu.edu.cn

作者简介: 韩磊磊，男，2000年生，硕士生

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表1 YGdBCO 超导带材的参数

图1 在带材超导层表面制备YBCO超导焊料的工艺流程

图2 在不同温度下在YGdBCO银带超导层制备的YBCO多晶膜的XRD谱以及(005)衍射峰的相对强度、半高宽和I(006)/I(005)峰强比

图3 原带超导层和在不同温度生长的YBCO多晶膜的SEM形貌

图4 原带材和沉积有YBCO多晶膜带材(795 ℃)的V-I曲线

图5 YBCO多晶膜在不同温度生长的单晶膜的XRD谱以及(005)衍射峰相对强度与半高宽和(103)衍射峰相对强度

图6 YBCO多晶膜在不同温度生长的单晶膜的SEM形貌

图7 多晶膜在820 ℃生长不同时间的单晶膜的XRD谱以及(005)衍射峰相对强度及其半高宽和(103)衍射峰相对强度

图8 YBCO多晶膜在820 ℃生长不同时间制备的单晶膜的SEM表面形貌

图9 YBCO多晶膜在820 ℃烧结30 min制备的单晶膜带材和原带材的V-I曲线

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