Effect of sol-gel derived nano-scale Y2Ba4CuAgO y addition in bulk Y-Ba-Cu-O superconductors

Po Wei Chen, Chien Ju Liu, Shih Yun Chen, Yung Tang Nien, In-Gann Chen

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This study reports a new method to prepare Y-Ba-Cu-O (YBCO) bulk superconductors with high critical current density (Jc). With the addition of 1 mol% Y2Ba4CuAgOy (Y24Ag1) nanoparticles, the Jc at 77 K of YBCO bulk is ̃ 5.8 × 104 A cm-2, while that of the sample without the addition is ̃ 1.5 × 104 A cm-2, which reflects about 4 times the enhancement. The above Y24Ag1 nano-particles were prepared by a sol-gel process of mixing metal nitrate with a polyacrylic acid (PAA) solution as precursors, followed by heating at 1000 °C for 3 h. X-ray diffraction (XRD) analysis indicated that the Y24Ag1 precursor particles are well crystallized with an average cluster size of 0.67 μm. In the as-grown single grain melt-textured sample, Y24Ag1 nano particles with the size of 10-20 nm were found to be homogeneously distributed in the YBa2Cu 3O7-δ (Y123) matrix. On the other hand, the Y 2BaCuO5 (Y211) remained micro-sized, which was not changed by the addition of Y24Ag1 nano particles.

Original languageEnglish
Article number5672792
Pages (from-to)2710-2713
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume21
Issue number3 PART 3
DOIs
Publication statusPublished - 2011 Jun 1

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carbopol 940
Critical current density (superconductivity)
YBCO superconductors
Nitrates
X ray diffraction analysis
Sol-gel process
Superconducting materials
Sol-gels
Metals
gels
Nanoparticles
Heating
Acids
sol-gel processes
nitrates
critical current
current density
nanoparticles
acids
heating

All Science Journal Classification (ASJC) codes

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

Cite this

Chen, Po Wei ; Liu, Chien Ju ; Chen, Shih Yun ; Nien, Yung Tang ; Chen, In-Gann. / Effect of sol-gel derived nano-scale Y2Ba4CuAgO y addition in bulk Y-Ba-Cu-O superconductors. In: IEEE Transactions on Applied Superconductivity. 2011 ; Vol. 21, No. 3 PART 3. pp. 2710-2713.
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abstract = "This study reports a new method to prepare Y-Ba-Cu-O (YBCO) bulk superconductors with high critical current density (Jc). With the addition of 1 mol{\%} Y2Ba4CuAgOy (Y24Ag1) nanoparticles, the Jc at 77 K of YBCO bulk is ̃ 5.8 × 104 A cm-2, while that of the sample without the addition is ̃ 1.5 × 104 A cm-2, which reflects about 4 times the enhancement. The above Y24Ag1 nano-particles were prepared by a sol-gel process of mixing metal nitrate with a polyacrylic acid (PAA) solution as precursors, followed by heating at 1000 °C for 3 h. X-ray diffraction (XRD) analysis indicated that the Y24Ag1 precursor particles are well crystallized with an average cluster size of 0.67 μm. In the as-grown single grain melt-textured sample, Y24Ag1 nano particles with the size of 10-20 nm were found to be homogeneously distributed in the YBa2Cu 3O7-δ (Y123) matrix. On the other hand, the Y 2BaCuO5 (Y211) remained micro-sized, which was not changed by the addition of Y24Ag1 nano particles.",
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Effect of sol-gel derived nano-scale Y2Ba4CuAgO y addition in bulk Y-Ba-Cu-O superconductors. / Chen, Po Wei; Liu, Chien Ju; Chen, Shih Yun; Nien, Yung Tang; Chen, In-Gann.

In: IEEE Transactions on Applied Superconductivity, Vol. 21, No. 3 PART 3, 5672792, 01.06.2011, p. 2710-2713.

Research output: Contribution to journalArticle

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