New High Efficient Thermal Spray Solutions for Perovskite Coatings and Dense Thin Electrolytes Using TriplexPro-200 APS and LPPS-Thin Film Technology

摘要

Production of protective coatings on metallic SOFC interconnects using (La,Sr)MnO_3 on an industrial scale requires an economically efficient process in order to obtain high quality and reliable coatings. The TriplexPro~(TM)-200 gun is a new advanced plasma spray torch with three electrodes which provides all the necessary features to apply this type of coatings to achieve the required productivity and quality for a mass production in an Atmospheric Plasma Spray process. The Low Pressure Plasma Spraying-Thin Film technology uses a high power plasma torch operated in a low pressure environment. This low ambient pressure produces a large plasma jet with unconventional properties allowing the production of thin and dense ceramic coatings. Thus, the technology is best suited to deposit very dense electrolyte layers of yttria stabilized zirconia for improved cell performance. Moreover, the large plasma plume in the LPPS-TF process allows a very efficient coating production on large areas.