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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Obradors, X.
Universidad de Cantabria
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2022Influence of growth temperature on the pinning landscape of YBa2Cu3O7-δfilms grown from Ba-deficient solutionscitations
- 2020Vortex pinning properties at dc and microwave frequencies of YBa2Cu3O7-x films with nanorods and nanoparticlescitations
- 2018Untangling surface oxygen exchange effects in YBa₂Cu₃O₆₊ₓ thin films by electrical conductivity relaxationcitations
- 2016Encoding Magnetic States in Monopole-Like Configurations Using Superconducting Dotscitations
- 2015Nanoporous polymeric templates systems for the confined growth of epitaxial ferromagnetic complex oxides nanostructures.
- 2014Confined Sol-Gel route to epitaxial Octahedral Molecular Sieve nanowires on silicon
- 2014Heteroepitaxial devitrification of silica to integrate functional oxide nanostructures on silicon
- 2014Effect of strain and magnetic field on the critical current and electric resistance of the joints between HTS coated conductors
- 2014Ferromagnetic 1D oxide nanostructures grown from chemical solutions in confined geometries
- 2013Thermal decomposition of barium trifluoroacetate thin filmscitations
- 2013Thermoanalytical study of the decomposition of yttrium trifluoroacetate thin filmscitations
- 2012Nanocomposite lanthanum strontium manganite thin films formed by using a chemical solution depositioncitations
- 2012Nanoscale strain-induced pair suppression as a vortex-pinning mechanism in high-temperature superconductorscitations
- 2012Synthesis of nanocrystalline ceria thin films by low-temperature thermal decomposition of Ce-propionatecitations
- 2011Misfit relaxation of La₀.₇Sr₀.₃MnO₃ thin films by a nanodot segregation mechanismcitations
- 2011Thermoanalytical study of the formation mechanism of yttria from yttrium acetatecitations
Places of action
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article
Thermoanalytical study of the formation mechanism of yttria from yttrium acetate
Abstract
The processes involved in the thermal decomposition of yttrium acetate tetrahydrate, Y(CH3COO)3·4H2O, in air and in an inert atmosphere have been analyzed by thermoanalytical techniques (thermogravimetry, differential thermal analysis and evolved gas analysis) and by the structural characterization (X-ray diffraction, infrared spectroscopy, elemental analysis and scanning electron microscopy) of intermediates and final products. Decomposition of yttrium acetate is an endothermic transformation that takes place in a temperature range between 350 and 900 °C. The evolution of the mass during the decomposition process is not affected by the presence of oxygen. The process is initiated by the rupture of the bond between the metallic cation and the acetate ligand. This initial step (350–450 °C) involves the formation of amorphous yttrium hydroxide and yttrium carbonate and is characterized by a fast mass loss rate. A sudden decrease of the mass loss rate indicates a change in the decomposition kinetics that continues with the decomposition of yttrium hydroxide and yttrium carbonate. The main effect of an oxygen atmosphere is an intense exothermic process due to the combustion of organic species in the gas phase.