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Your search keyword '"Szyndelman, G."' showing total 4 results
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4 results on '"Szyndelman, G."'

1. Towards upscaling of La5.5WO11.25-d manufacture for Plasma Spraying-Thin Film coated hydrogen permeable membranes

Author

European Commission, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Escolástico Rozalén, Sonia, Solís, Cecilia, Comite, V., Azzurri, F., Gindrat, M., Moser, S., Rauch, J., Szyndelman, G., Damani, R., Serra Alfaro, José Manuel, European Commission, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Escolástico Rozalén, Sonia, Solís, Cecilia, Comite, V., Azzurri, F., Gindrat, M., Moser, S., Rauch, J., Szyndelman, G., Damani, R., and Serra Alfaro, José Manuel

Abstract

Lanthanum tungstate (La6WO12) is a promising material for the development of hydrogen separation membranes, proton ceramic electrolyzer cells and protonic ceramic fuel cells due to its interesting transport properties and stability under different operation conditions. In order to improve the hydrogen transport through the La6WO12 membranes, thin membranes should be manufactured. This work is based on the industrial production of La5.5WO11.25-¿ (LWO) powder by spray drying and the manufacturing of thin membranes by low-pressure plasma spraying (LPPS-TF) technique. LPPS-TF allows the production of dense thin films of high quality in an industrial scale. The powders produced by spray drying were morphological and electrochemically characterized. Hydrogen permeation fluxes of a membrane manufactured with these powders were evaluated and fluxes are similar to those reported previously for LWO powder produced in the lab scale. Finally, the transport properties of LWO thin films deposited on Al2O3 indicate that LPPS-TF produces high-quality LWO films with potential for integration in different applications.

Published
2020

3. Influence of APS process parameters on morphologies of YSZ-polyester abradable coatings

Author

Aussavy, D., Rodolphe BOLOT, Montavon, G., Peyraut, F., Szyndelman, G., Gurt-Santanach, J., and Selezneff, S.

Abstract

Abradable seals are used in aircraft engine compressor and turbine to decrease fuel consumption. Their role is to minimize the clearance between the rotating blades of an engine rotor and the casing to reduce air leakages (compressor) or air-fuel combustion product leakages (turbine). Operating temperatures in turbines (up to 1800°C) can induce a thermal expansion of the blades and give rise to contacts providing damages to the blades or casing. Thus, in case of contact, the blade should remove the abradable seals applied to the casing without being damaged. Besides, the seal must be resistant to the turbine environment. Direct relationships have been observed between plasma spray operating parameters and abradable coating performances. The aim of this study is to determine those relationships for YSZ-Polyester abradable composite coatings. This study is conducted within the frame work of the 7FP European project E-BREAK to reach the environmental objectives of the European Advisory Council for Aviation Research and innovation.

4. Towards Upscaling of La 5.5 WO 11.25-δ Manufacture for Plasma Spraying-Thin Film Coated Hydrogen Permeable Membranes.

Author

Escolástico S, Solís C, Comite A, Azzurri F, Gindrat M, Moser S, Rauch J, Szyndelman G, Damani R, and Serra JM

Abstract

Lanthanum tungstate (La 6 WO 12 ) is a promising material for the development of hydrogen separation membranes, proton ceramic electrolyzer cells and protonic ceramic fuel cells due to its interesting transport properties and stability under different operation conditions. In order to improve the hydrogen transport through the La 6 WO 12 membranes, thin membranes should be manufactured. This work is based on the industrial production of La 5.5 WO 11.25-δ (LWO) powder by spray drying and the manufacturing of thin membranes by low-pressure plasma spraying (LPPS-TF) technique. LPPS-TF allows the production of dense thin films of high quality in an industrial scale. The powders produced by spray drying were morphological and electrochemically characterized. Hydrogen permeation fluxes of a membrane manufactured with these powders were evaluated and fluxes are similar to those reported previously for LWO powder produced in the lab scale. Finally, the transport properties of LWO thin films deposited on Al 2 O 3 indicate that LPPS-TF produces high-quality LWO films with potential for integration in different applications.

Published
2020
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