Texture of High Temperature Superconductor Thick Films Tl-1223 and Tl-2223/LaAlO&lt;sub&gt;3&lt;/sub&gt; Deposited by Spray Pyrolysis

Xuan, Hoan Nguyen; Benghia, Ali; Galez, Ph.; Jorda, J. L.; Phok, Sovannary; De-Barros, D.

doi:10.4028/www.scientific.net/msf.467-470.591

Cited by 4 publications

(8 citation statements)

References 13 publications

(10 reference statements)

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“…Difficulties with the chemical non-vacuum preparation of films containing pure Tl-2223 phases are well known [1,10]. Until now, most of the interest in this field has been devoted to the preparation of Tl-2223 films by thallination in closed systems sealed in quartz tubes.…”

Section: Resultsmentioning

confidence: 99%

“…The first step involves the chemical [1][2][3] or physical [4,5] deposition of a Tl-free precursor film on a substrate, and subsequent ex -situ thallination is the second step. The spray-pyrolysis technique is well suited for the preparation of large coatings with a potential for practical use.…”

Section: Introductionmentioning

confidence: 99%

“…This is followed by the reaction Tl-2223 → Tl-1223. Since Tl-2223 lies on pathway between two relatively stable phases, it is a difficult task to optimize thallination conditions in such a way that a pure Tl-2223 phase is formed [1,2]. Therefore, up until now, most studies on Tl-based films have been devoted to Tl-2212.…”

Section: Introductionmentioning

confidence: 99%

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Tl-based superconducting films prepared by aerosol spray deposition and thallinated in an open system

et al. 2007

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Superconducting Tl-based films were prepared on a LaAlO 3 single crystal substrate. Spray pyrolysis of Ba, Ca and Cu nitrate solutions was used for deposition of the precursor films. They were subsequently ex-situ thallinated in flowing oxygen (open system). While the superconducting Tl-2212 phase formed at an annealing temperature of 880• C, thallination at 900• C led to the formation of a Tl-2223 / Tl-2212 mixture. The amount of Tl-2223 increased with prolonged thallination, whereas the Tl-2212 phase progressively disappeared. Films prepared in such a manner were c−oriented and contained only low amounts of non-superconducting impurities. The resulting samples were characterized by XRD and SEM and their T C values were determined by resistive four-point measurements. They showed critical temperatures in the range of T ON = 125-135 K, T C0 = 91 -93 K. Differences between the composition and properties of the obtained films and those thallinated in closed systems under 50 kPa of oxygen are discussed in this paper. Results show that the Tl-2212 → Tl-2223 transformation proceeds at a slower rate under flowing oxygen than in a closed system.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Tl-based superconducting films prepared by aerosol spray deposition and thallinated in an open system

et al. 2007

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“…For quick-over the structure of inter- The fabrication of single-phase Tl-2223 films is a difficult task, it is not completely solved up to now, since it lies on pathway between two relatively stable phases Tl-2212 and Tl-1223. No single-phase films with only Tl-2223 phase were obtained until now [9].…”

Section: Introductionmentioning

confidence: 99%

“…Many deposition methods have been reported, for example sputtering [1][2][3], laser ablation [4,5], thermal evaporation [6] and organic chemical vapour deposition [7,8]. The chemical solution routes of the deposition-like spray pyrolysis [9,10] are preferred for preparing large-scale coatings in industry because of easier production and their low capital costs.…”

Section: Introductionmentioning

confidence: 99%

The influence of the reaction conditions on the formation of Tl-2223 superconducting films deposited by spray pyrolysis

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Xuan

Galez

et al. 2007

Journal of Physics and Chemistry of Solids

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Structure Guided Design, Synthesis, and Biological Evaluation of Novel Benzosuberene Analogues as Inhibitors of Tubulin Polymerization

et al. 2019

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A promising design paradigm for small-molecule inhibitors of tubulin polymerization that bind to the colchicine site draws structural inspiration from the natural products colchicine and combretastatin A-4 (CA4). Our previous studies with benzocycloalkenyl and heteroaromatic ring systems yielded promising inhibitors with dihydronaphthalene and benzosuberene analogues featuring phenolic (KGP03 and KGP18) and aniline (KGP05 and KGP156) congeners emerging as lead agents. These molecules demonstrated dual mechanism of action, functioning as both potent vascular disrupting agents (VDAs) and as highly cytotoxic anticancer agents. A further series of analogues was designed to extend functional group diversity and investigate regioisomeric tolerance. Ten new molecules were effective inhibitors of tubulin polymerization (IC 50 < 5 µM) with seven of these exhibiting highly potent activity comparable to CA4, KGP18, and KGP03. For one of the most effective agents, dose-dependent vascular shutdown was *

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Texture of High Temperature Superconductor Thick Films Tl-1223 and Tl-2223/LaAlO<sub>3</sub> Deposited by Spray Pyrolysis

Cited by 4 publications

References 13 publications

Tl-based superconducting films prepared by aerosol spray deposition and thallinated in an open system

Tl-based superconducting films prepared by aerosol spray deposition and thallinated in an open system

The influence of the reaction conditions on the formation of Tl-2223 superconducting films deposited by spray pyrolysis

Structure Guided Design, Synthesis, and Biological Evaluation of Novel Benzosuberene Analogues as Inhibitors of Tubulin Polymerization

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