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Direct shaping of oxides by laser insolation of transition metal oxalates

Pasquet, Isabelle and Le Trong, Hoa and Baco-Carles, Valérie and Presmanes, Lionel and Bonningue, Corine and Baylac, Vincent and Tailhades, Philippe and Conedera, Véronique and Calmon, Pierre-François and Dragomirescu, Daniela and Camon, Henri Direct shaping of oxides by laser insolation of transition metal oxalates. (2017) Journal of the European Ceramic Society, 37 (16). 5315-5320. ISSN 0955-2219

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Official URL: http://dx.doi.org/10.1016/j.jeurceramsoc.2017.03.030

Abstract

Films of copper and cobalt-iron oxalates were prepared from suspensions of powders in ethane-1,2-diol deposited on glass or polycarbonate substrates. Two-dimensional structures of oxides, resolved on the scale of less than ten micrometers, were formed by laser insolation of these films, using a photolithography machine. The nature of the constitutive phases of the oxides formed tends to show that the laser heating makes it possible to reach locally, temperatures higher than 1000 ◦C. The oxides formed are thus sintered. The residual oxalate can be removed by washing or dissolving, leaving the oxide structure on its substrate. In spite of a perfectible sintering, the formed structures could interest different technological applications (electronic or magnetic devices, gas sensors, photovoltaic systems. . .) requiring the shaping of simple or mixed oxides on a scale close to the micrometer. The process of selective laser decomposition of oxalates, could subsequently be suitable for additive manufacturing of 3D parts.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at : https://www.sciencedirect.com/science/article/pii/S0955221917301796?via%3Dihub
HAL Id:hal-01767894
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: cirimat webmestre
Deposited On:16 Apr 2018 15:02

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