Top-seeded infiltration growth processing of single grain (Gd, Dy)BaCuO superconductors: Nano Nb2O5 doping, enhancement of trapped field and superconducting performance

2021 ◽  
pp. 124954
Author(s):  
S. Pavan Kumar Naik ◽  
Paweł Pęczkowski ◽  
H. Ogino ◽  
M. Muralidhar ◽  
N. Sakai ◽  
...  
Keyword(s):  
Trapped Field ◽  
Single Grain ◽  
Infiltration Growth

A novel preform compaction method for fabricating high-performance Y–Ba–Cu–O single-grain bulk superconductor

2021 ◽  
Author(s):  
Guo-Zheng Li ◽  
Miao Wang
Keyword(s):  
High Performance ◽  
Sample Surface ◽  
Bulk Superconductor ◽  
Ybco Bulk ◽  
Trapped Field ◽  
Optical Micrograph ◽  
New Type ◽  
Single Grain ◽  
Grain Bulk ◽  
Compaction Method

Abstract A novel preform compaction method based on one new type of divisible mould was employed for fabricating single-grain YBCO bulk superconductor, which can complete the preform demoulding process through opening of the mould, rather than pushing the preform out in the regular mould. Thus it has natural superiority on eliminating macro-cracks, which has been proved by the sample surface morphology and the trapped field characterization. In addition, the divisible mould pressed sample exhibits higher levitation force and trapped field properties than the regular mould pressed samples, verifying the potentials of the divisible mould on improving the bulk performance. The optical micrograph results prove the superiority of the divisible mould on eliminating tiny cracks on sample surface. The processing facility and sample reliability brought by the divisible mould should also be emphasized, because the crushing and re-pressing of preform when it presents visible cracks can be omitted and the failed samples with surface cracks will no longer appear. Consequently, the experimental efficiency and stability are both enhanced.

A Coated Infiltration Growth Technique for Fabricating Single-Grain Y-Ba-Cu-O Bulk Superconductor

2014 ◽  
Vol 97 (12) ◽  
pp. 3725-3728 ◽  
Author(s):  
Guo-Zheng Li ◽  
Lei Dong ◽  
Jian-Hua Deng ◽  
Xiang-Yun Deng ◽  
Wan-Min Yang
Keyword(s):  
Bulk Superconductor ◽  
Growth Technique ◽  
Single Grain ◽  
Infiltration Growth

Influence of CeO2 on microstructure, cracking and trapped field of TSIG YBCO single-grain superconductors

2020 ◽  
Vol 33 (3) ◽  
pp. 034005
Author(s):  
K Zmorayova ◽  
L Vojtkova ◽  
T Hlasek ◽  
J Plechacek ◽  
P Diko
Keyword(s):  
Trapped Field ◽  
Single Grain

Infiltration Growth and Crystallization Characterization of Single-Grain Y–Ba–Cu–O Bulk Superconductors

2013 ◽  
Vol 13 (3) ◽  
pp. 1246-1251 ◽  
Author(s):  
Guo-Zheng Li ◽  
De-Jun Li ◽  
Xiang-Yun Deng ◽  
Jian-Hua Deng ◽  
Wan-Min Yang
Keyword(s):  
Bulk Superconductors ◽  
Single Grain ◽  
Infiltration Growth
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