Effect of ZnO/TiO2 Nanorods Fabricated Using the Electrospinning Method in Y-Ba-Cu-O Single Grain Bulk Superconductors

Chia Ming Yang, Po Wei Chen, Chien Ju Liu, Shih Yun Chen, Chang Shu Kuo, In Gann Chen, Maw Kuen Wu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this study, the enhanced superconducting properties of single grain bulk Y-Ba-Cu-O (YBCO) superconductors by the addition of ZnO and TiO2 nano-rods (NRs) were investigated. The NRs were prepared using the electrospinning method, in which size is twice the coherence length of the superconductor and is intended supposed to serve as columnar defects to provide efficient pinning. The experimental results showed that there were no weak links formed by the addition of the NRs. All of the bulks exhibited a single grain structure, and the distribution profiles of the trapped fields were symmetrical. The value of the maximum trapped field (Bt, max) was enhanced to 0.12 T, which was 1.5 times higher than the undoped sample (approximately 0.08 T). In addition, Jc was also enhanced by the addition of the NRs. The self-field at 77 K was 4.6×104Acm-2 of the 0.05wt% ZnO NRs-doped and 0.1wt% TiO2 NRs-doped samples, respectively, which was higher than that of the undoped sample of 2.5×104 Acm-2. A microstructural analysis demonstrated that there was no reaction occurred between the NRs and YBCO precursors during the melting process. The size and shape of the NRs found in the matrix of the grown bulk were the same as those of the precursors. Consequently, the enhanced superconductivities were then attributed to the increased interface areas between the NRs and the matrix.

Original languageEnglish
Article number7737060
JournalIEEE Transactions on Applied Superconductivity
Volume27
Issue number4
DOIs
Publication statusPublished - 2017 Jun 1

Fingerprint

Electrospinning
Nanorods
Superconducting materials
nanorods
rods
Crystal microstructure
Superconductivity
Melting
Defects
YBCO superconductors
titanium dioxide
matrices
superconductivity
melting
defects
profiles

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

@article{0d7dd796eaa94c18ab2ba4ea40bcdeda,
title = "Effect of ZnO/TiO2 Nanorods Fabricated Using the Electrospinning Method in Y-Ba-Cu-O Single Grain Bulk Superconductors",
abstract = "In this study, the enhanced superconducting properties of single grain bulk Y-Ba-Cu-O (YBCO) superconductors by the addition of ZnO and TiO2 nano-rods (NRs) were investigated. The NRs were prepared using the electrospinning method, in which size is twice the coherence length of the superconductor and is intended supposed to serve as columnar defects to provide efficient pinning. The experimental results showed that there were no weak links formed by the addition of the NRs. All of the bulks exhibited a single grain structure, and the distribution profiles of the trapped fields were symmetrical. The value of the maximum trapped field (Bt, max) was enhanced to 0.12 T, which was 1.5 times higher than the undoped sample (approximately 0.08 T). In addition, Jc was also enhanced by the addition of the NRs. The self-field at 77 K was 4.6×104Acm-2 of the 0.05wt{\%} ZnO NRs-doped and 0.1wt{\%} TiO2 NRs-doped samples, respectively, which was higher than that of the undoped sample of 2.5×104 Acm-2. A microstructural analysis demonstrated that there was no reaction occurred between the NRs and YBCO precursors during the melting process. The size and shape of the NRs found in the matrix of the grown bulk were the same as those of the precursors. Consequently, the enhanced superconductivities were then attributed to the increased interface areas between the NRs and the matrix.",
author = "Yang, {Chia Ming} and Chen, {Po Wei} and Liu, {Chien Ju} and Chen, {Shih Yun} and Kuo, {Chang Shu} and Chen, {In Gann} and Wu, {Maw Kuen}",
year = "2017",
month = "6",
day = "1",
doi = "10.1109/TASC.2016.2625760",
language = "English",
volume = "27",
journal = "IEEE Transactions on Applied Superconductivity",
issn = "1051-8223",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "4",

}

Effect of ZnO/TiO2 Nanorods Fabricated Using the Electrospinning Method in Y-Ba-Cu-O Single Grain Bulk Superconductors. / Yang, Chia Ming; Chen, Po Wei; Liu, Chien Ju; Chen, Shih Yun; Kuo, Chang Shu; Chen, In Gann; Wu, Maw Kuen.

In: IEEE Transactions on Applied Superconductivity, Vol. 27, No. 4, 7737060, 01.06.2017.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of ZnO/TiO2 Nanorods Fabricated Using the Electrospinning Method in Y-Ba-Cu-O Single Grain Bulk Superconductors

AU - Yang, Chia Ming

AU - Chen, Po Wei

AU - Liu, Chien Ju

AU - Chen, Shih Yun

AU - Kuo, Chang Shu

AU - Chen, In Gann

AU - Wu, Maw Kuen

PY - 2017/6/1

Y1 - 2017/6/1

N2 - In this study, the enhanced superconducting properties of single grain bulk Y-Ba-Cu-O (YBCO) superconductors by the addition of ZnO and TiO2 nano-rods (NRs) were investigated. The NRs were prepared using the electrospinning method, in which size is twice the coherence length of the superconductor and is intended supposed to serve as columnar defects to provide efficient pinning. The experimental results showed that there were no weak links formed by the addition of the NRs. All of the bulks exhibited a single grain structure, and the distribution profiles of the trapped fields were symmetrical. The value of the maximum trapped field (Bt, max) was enhanced to 0.12 T, which was 1.5 times higher than the undoped sample (approximately 0.08 T). In addition, Jc was also enhanced by the addition of the NRs. The self-field at 77 K was 4.6×104Acm-2 of the 0.05wt% ZnO NRs-doped and 0.1wt% TiO2 NRs-doped samples, respectively, which was higher than that of the undoped sample of 2.5×104 Acm-2. A microstructural analysis demonstrated that there was no reaction occurred between the NRs and YBCO precursors during the melting process. The size and shape of the NRs found in the matrix of the grown bulk were the same as those of the precursors. Consequently, the enhanced superconductivities were then attributed to the increased interface areas between the NRs and the matrix.

AB - In this study, the enhanced superconducting properties of single grain bulk Y-Ba-Cu-O (YBCO) superconductors by the addition of ZnO and TiO2 nano-rods (NRs) were investigated. The NRs were prepared using the electrospinning method, in which size is twice the coherence length of the superconductor and is intended supposed to serve as columnar defects to provide efficient pinning. The experimental results showed that there were no weak links formed by the addition of the NRs. All of the bulks exhibited a single grain structure, and the distribution profiles of the trapped fields were symmetrical. The value of the maximum trapped field (Bt, max) was enhanced to 0.12 T, which was 1.5 times higher than the undoped sample (approximately 0.08 T). In addition, Jc was also enhanced by the addition of the NRs. The self-field at 77 K was 4.6×104Acm-2 of the 0.05wt% ZnO NRs-doped and 0.1wt% TiO2 NRs-doped samples, respectively, which was higher than that of the undoped sample of 2.5×104 Acm-2. A microstructural analysis demonstrated that there was no reaction occurred between the NRs and YBCO precursors during the melting process. The size and shape of the NRs found in the matrix of the grown bulk were the same as those of the precursors. Consequently, the enhanced superconductivities were then attributed to the increased interface areas between the NRs and the matrix.

UR - http://www.scopus.com/inward/record.url?scp=85012915968&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85012915968&partnerID=8YFLogxK

U2 - 10.1109/TASC.2016.2625760

DO - 10.1109/TASC.2016.2625760

M3 - Article

AN - SCOPUS:85012915968

VL - 27

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

SN - 1051-8223

IS - 4

M1 - 7737060

ER -