Comments on the wetting behavior of non-porous substrates for ceramic coated-conductor applications

Vermeir, Pieter; Deruyck, Frank; Feys, Jonas; Lommens, Petra; Schaubroeck, J.; Driessche, Isabel Van

doi:10.1007/s10971-012-2737-3

Cited by 13 publications

(13 citation statements)

References 37 publications

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“…The purified solutions were dip coated on cleaned (1 0 0) oriented SrTiO 3 (STO) substrates. The cleaning conditions for the STO substrates, published before [20], were found to be crucial towards complete wetting and film quality [23].…”

Section: Preparation Of the Precursor Solution And Srtio 3 Substratementioning

confidence: 99%

Influence of sintering conditions in the preparation of acetate-based fluorine-free CSD YBCO films using a direct sintering method

Vermeir

Feys

Schaubroeck

et al. 2012

Materials Research Bulletin

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Section: Preparation Of the Precursor Solution And Srtio 3 Substratementioning

confidence: 99%

Influence of sintering conditions in the preparation of acetate-based fluorine-free CSD YBCO films using a direct sintering method

Vermeir

Feys

Schaubroeck

et al. 2012

Materials Research Bulletin

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“…Moreover, the J c of thick multilayer YBCO films prepared using the F/Ba = 4 and 6 sols decreases greatly with the increase of film thickness. The reason is that the high fluorine content in the coated films arouses many defects and produces more corrosive HF gas and finally leads to large amount of macro-pores inside the films [18,29,30].…”

Section: Resultsmentioning

confidence: 99%

Ultralow-fluorine sol–gel deposition of thick YBCO multilayer films

Bian

Chen

et al. 2015

J Sol-Gel Sci Technol

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Three kinds of low-fluorine YB 2 Cu 3 O 7-x (YBCO) starting sols with F/Ba = 6, 4 and 2 were applied to fabricate multilayer YBCO films on LaAlO 3 substrates by multi-coating technique. Influence of the fluorine content in the sols and the thickness of single-coated layer on the properties of multilayer YBCO films was discussed in detail. The critical current density (J c ) of multilayer YBCO films derived from F/Ba = 6 and 4 sols dropped sharply with thickness. However, using sol with F/Ba = 2, the J c of multilayer films decreased slowly with thickness. Moreover, the thinner the single-coated film, the less the amount of a-axis-oriented grains inside the multilayer films, resulting in the improvement in J c of the final thick films. Through multi-coating technique, YBCO films as thick as 1.1-1.2 lm were prepared. The J c of the optimized thick YBCO films reached a high value of 4.23MA/cm 2 at 77 K, 0T. Graphical Abstract Compared with the YBCO films derived from other low-fluorine sols, the YBCO films prepared using the ultralow-fluorine sol with mole ratio of F/Ba = 2 show the higher superconducting current transportation ability. Using this solution, the ''thickness effect'' of multilayer thick YBCO films is degraded obviously. Moreover, lowering the thickness of every layer film through controlling the withdrawal speed can also suppress the formation of a-axis grains, thus enhancing the critical current density of final thick YBCO films.

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“…In recent years, a lot of research has been dedicated to the development of low cost, fluorine-free, preferably aqueous precursor solutions for the chemical deposition of YBCO and buffer layers [33][34][35][36]. We have recently published that the use of chelating agents such as NTA and triethanolamine to increase the ion solubility can lead to excellent YBCO precursors [26,37].…”

Section: Discussionmentioning

confidence: 99%

Thin YBa₂Cu₃O_7-δpatterns by Chemical Solution Processing using Ink-Jet Printing

et al. 2013

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In this paper, we present ink-jet printing as an attractive alternative to lithography and etching methods for the development of multi-filamentary YBa 2 Cu 3 O 7-δ coated conductors. Our research is mainly focused on the study of the influence of rheological parameters on the printability of water-based inks in order to produce superconducting patterns on SrTiO 3 and CeO 2 -La 2 Zr 2 O 7 -Ni5at%W substrates. An aqueous YBCO precursor ink with a total metal ion concentration of 1.1 mol/L with a viscosity of 6.79 mPa s and a surface tension of 67.9 mN/m is developed. Its printing behavior using several ink-jet printing devices is verified using a camera with strobed illumination to quantify droplet velocity and volume. After optimization of the deposition parameters, YBCO tracks with different dimensions could be printed on both types of substrates. Their shape and dimensions were determined using optical microscopy and noncontact profilometry, showing 100-200 nm thick and 40-200 µm wide tracks. Finally, resistivity measurements were performed on the widest tracks on SrTiO 3 showing a clear drop in the resistivity starting from 88.6 K with a ∆T c of 1.4 K.

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Comments on the wetting behavior of non-porous substrates for ceramic coated-conductor applications

Cited by 13 publications

References 37 publications

Influence of sintering conditions in the preparation of acetate-based fluorine-free CSD YBCO films using a direct sintering method

Influence of sintering conditions in the preparation of acetate-based fluorine-free CSD YBCO films using a direct sintering method

Ultralow-fluorine sol–gel deposition of thick YBCO multilayer films

Thin YBa₂Cu₃O_7-δpatterns by Chemical Solution Processing using Ink-Jet Printing

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Comments on the wetting behavior of non-porous substrates for ceramic coated-conductor applications

Cited by 13 publications

References 37 publications

Influence of sintering conditions in the preparation of acetate-based fluorine-free CSD YBCO films using a direct sintering method

Influence of sintering conditions in the preparation of acetate-based fluorine-free CSD YBCO films using a direct sintering method

Ultralow-fluorine sol–gel deposition of thick YBCO multilayer films

Thin YBa2Cu3O7-δpatterns by Chemical Solution Processing using Ink-Jet Printing

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Thin YBa₂Cu₃O_7-δpatterns by Chemical Solution Processing using Ink-Jet Printing