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Superconducting YBa2Cu3O7-δ nanocomposites using preformed ZrO2 nanocrystals : growth mechanisms and vortex pinning properties

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Abstract
Although high temperature superconductors are promising for power applications, the production of low-cost coated conductors with high current densitiesat high magnetic fieldsremains challenging. A superior superconducting YBa2Cu3O7- nanocomposite is fabricated via chemical solution deposition (CSD) using preformed nanocrystals (NCs). Preformed, colloidally stable ZrO2 NCs are added to the trifluoroacetic acid based precursor solution and the NCs' stability is confirmed up to 50 mol% for at least 2.5 months. These NCs tend to disrupt the epitaxial growth of YBa2Cu3O7-, unless a thin seed layer is applied. A 10 mol% ZrO2 NC addition proved to be optimal, yielding a critical current density J(C) of 5 MA cm(-2) at 77 K in self-field. Importantly, this new approach results in a smaller magnetic field decay of J(C)(H//c) for the nanocomposite compared to a pristine film. Furthermore, microstructural analysis of the YBa2Cu3O7- nanocomposite films reveals that different strain generation mechanisms may occur compared to the spontaneous segregation approach. Yet, the generated nanostrain in the YBa2Cu3O7- nanocomposite results in an improvement of the superconducting properties similar to the spontaneous segregation approach. This new approach, using preformed NCs in CSD coatings, can be of great potential for high magnetic field applications.
Keywords
chemical solution deposition, nanocomposites, nanoparticles, TFA-YBCO, METAL-OXIDE NANOCRYSTALS, COATED CONDUCTORS, CURRENT DENSITIES, LIGAND-EXCHANGE, FILMS, PROGRESS, BAZRO3, WIRES, NANOSTRUCTURES, NANOPARTICLES

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Citation

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MLA
De Keukeleere, Katrien, et al. “Superconducting YBa2Cu3O7-δ Nanocomposites Using Preformed ZrO2 Nanocrystals : Growth Mechanisms and Vortex Pinning Properties.” ADVANCED ELECTRONIC MATERIALS, vol. 2, no. 10, 2016.
APA
De Keukeleere, K., Cayado, P., Meledin, A., Vallès, F., De Roo, J., Rijckaert, H., … Van Driessche, I. (2016). Superconducting YBa2Cu3O7-δ nanocomposites using preformed ZrO2 nanocrystals : growth mechanisms and vortex pinning properties. ADVANCED ELECTRONIC MATERIALS, 2(10).
Chicago author-date
De Keukeleere, Katrien, Pablo Cayado, Alexander Meledin, Ferran Vallès, Jonathan De Roo, Hannes Rijckaert, Glenn Pollefeyt, et al. 2016. “Superconducting YBa2Cu3O7-δ Nanocomposites Using Preformed ZrO2 Nanocrystals : Growth Mechanisms and Vortex Pinning Properties.” ADVANCED ELECTRONIC MATERIALS 2 (10).
Chicago author-date (all authors)
De Keukeleere, Katrien, Pablo Cayado, Alexander Meledin, Ferran Vallès, Jonathan De Roo, Hannes Rijckaert, Glenn Pollefeyt, Els Bruneel, Anna Palau, Mariona Coll, Susagna Ricart, Gustaaf Van Tendeloo, Teresa Puig, Xavier Obradors, and Isabel Van Driessche. 2016. “Superconducting YBa2Cu3O7-δ Nanocomposites Using Preformed ZrO2 Nanocrystals : Growth Mechanisms and Vortex Pinning Properties.” ADVANCED ELECTRONIC MATERIALS 2 (10).
Vancouver
1.
De Keukeleere K, Cayado P, Meledin A, Vallès F, De Roo J, Rijckaert H, et al. Superconducting YBa2Cu3O7-δ nanocomposites using preformed ZrO2 nanocrystals : growth mechanisms and vortex pinning properties. ADVANCED ELECTRONIC MATERIALS. 2016;2(10).
IEEE
[1]
K. De Keukeleere et al., “Superconducting YBa2Cu3O7-δ nanocomposites using preformed ZrO2 nanocrystals : growth mechanisms and vortex pinning properties,” ADVANCED ELECTRONIC MATERIALS, vol. 2, no. 10, 2016.
@article{8502434,
  abstract     = {Although high temperature superconductors are promising for power applications, the production of low-cost coated conductors with high current densitiesat high magnetic fieldsremains challenging. A superior superconducting YBa2Cu3O7- nanocomposite is fabricated via chemical solution deposition (CSD) using preformed nanocrystals (NCs). Preformed, colloidally stable ZrO2 NCs are added to the trifluoroacetic acid based precursor solution and the NCs' stability is confirmed up to 50 mol% for at least 2.5 months. These NCs tend to disrupt the epitaxial growth of YBa2Cu3O7-, unless a thin seed layer is applied. A 10 mol% ZrO2 NC addition proved to be optimal, yielding a critical current density J(C) of 5 MA cm(-2) at 77 K in self-field. Importantly, this new approach results in a smaller magnetic field decay of J(C)(H//c) for the nanocomposite compared to a pristine film. Furthermore, microstructural analysis of the YBa2Cu3O7- nanocomposite films reveals that different strain generation mechanisms may occur compared to the spontaneous segregation approach. Yet, the generated nanostrain in the YBa2Cu3O7- nanocomposite results in an improvement of the superconducting properties similar to the spontaneous segregation approach. This new approach, using preformed NCs in CSD coatings, can be of great potential for high magnetic field applications.},
  articleno    = {1600161},
  author       = {De Keukeleere, Katrien and Cayado, Pablo and Meledin, Alexander and Vallès, Ferran and De Roo, Jonathan and Rijckaert, Hannes and Pollefeyt, Glenn and Bruneel, Els and Palau, Anna and Coll, Mariona and Ricart, Susagna and Van Tendeloo, Gustaaf and Puig, Teresa and Obradors, Xavier and Van Driessche, Isabel},
  issn         = {2199-160X},
  journal      = {ADVANCED ELECTRONIC MATERIALS},
  keywords     = {chemical solution deposition,nanocomposites,nanoparticles,TFA-YBCO,METAL-OXIDE NANOCRYSTALS,COATED CONDUCTORS,CURRENT DENSITIES,LIGAND-EXCHANGE,FILMS,PROGRESS,BAZRO3,WIRES,NANOSTRUCTURES,NANOPARTICLES},
  language     = {eng},
  number       = {10},
  pages        = {9},
  title        = {Superconducting YBa2Cu3O7-δ nanocomposites using preformed ZrO2 nanocrystals : growth mechanisms and vortex pinning properties},
  url          = {http://dx.doi.org/10.1002/aelm.201600161},
  volume       = {2},
  year         = {2016},
}

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