Journal of Sol-Gel Science and Technology

, Volume 80, Issue 2, pp 277–284

Composite films combining electrospun fiber network and epitaxial oxide by chemical solution deposition

  • Albert Calleja
  • Jordi Sort
  • Susagna Ricart
  • Xavier Granados
  • Xavier Palmer
  • Valentina Roxana Vlad
  • Teresa Puig
  • Xavier Obradors
Original Paper: Functional coatings, thin films and membranes (including deposition techniques)

DOI: 10.1007/s10971-016-4133-x

Cite this article as:
Calleja, A., Sort, J., Ricart, S. et al. J Sol-Gel Sci Technol (2016) 80: 277. doi:10.1007/s10971-016-4133-x
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Abstract

We report the preparation of a novel type of composites films by chemical solution deposition. It consists of an epitaxial oxide on a single-crystal template inside which an oxide fiber network is dispersed. Electrospinning is used for the deposition of the fiber network, whereas the continuous epitaxial phase is spin-coated. Homogeneous coating is observed between the liquid precursor of the continuous oxide and the fibers and remarkably, epitaxial (001) growth of the YBa2Cu3O7−x is not affected by the presence of the fiber network because both oxides do not react to each other. Topological continuity of the continuous phase is probed by electrical conductivity measurements, rendering nearly the same values reported for fiber-free films. Mechanical properties are determined by nanoindentation at low penetration depths to avoid the effect of the single crystal beneath the composite. Enhanced mechanical properties are found (hardness, Young’s modulus, elastic recovery and wear resistance).

Graphical Abstract

A thin film of c-axis-oriented epitaxial YBa2Cu3O7−x with embedded electrospun fiber network of BaZrO3 was prepared by chemical solution deposition. Mechanical properties were analyzed in these composite films by nanoindentation, showing an enhancement of hardness, Young’s modulus, elastic recovery and wear resistance with respect to the BaZrO3-free films.

Keywords

Ceramic fiber Electrospinning Thin film Chemical solution deposition High-temperature superconductivity Mechanical properties Mechanical testing 

Supplementary material

10971_2016_4133_MOESM1_ESM.docx (1.5 mb)
Supplementary material 1 (DOCX 1496 kb)

Funding information

Funder NameGrant NumberFunding Note
Ministerio de Economía y Competitividad
  • MAT2011-28874-C02
  • MAT2011-27380-C02-01
  • CSD2007-0041
  • IPT-2011-1090-920000
Ministerio de Economía y Competitividad (ES)
  • Ramon y Cajal
Generalitat de Catalunya
  • SGR-770
Generalitat de Catalunya (ES)
  • 2014-SGR-1015
  • XaRMAE

Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • Albert Calleja
    • 1
    • 2
  • Jordi Sort
    • 3
  • Susagna Ricart
    • 1
  • Xavier Granados
    • 1
  • Xavier Palmer
    • 1
  • Valentina Roxana Vlad
    • 2
  • Teresa Puig
    • 1
  • Xavier Obradors
    • 1
  1. 1.Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)BellaterraSpain
  2. 2.Oxolutia SL, Edifici Eureka, Parc de Recerca UABBellaterraSpain
  3. 3.Institució Catalana de Recerca i Estudis Avançats (ICREA) and Departament de Física, Facultat de Ciències, Edifici CcUniversitat Autònoma de BarcelonaBellaterraSpain

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