Abstract

Low pressure plasma spraying has taken a dominant role in the production deposition of MCrAlY functional coatings on turbine components since it's introduction in the 70’s. The specific advantages in this process are possibilities to:• Deposit oxidation sensitive materials nearly free from oxides• Preheat substrates under controlled conditions that assure optimized substrate temperature without oxidation• Transfer arc clean unwanted materials from the substrate surface immediately prior to coatingRecent developments of the LPPS process indicate that this established process can offer new possibilities and improvements that may also be applicable for new applications.• The LPPS Thin Film Technology allows rapid covering of large areas with thin coatings. This new process de-velopment closes the well known thickness gap between vapor phase processes and thermal spraying. It also offers the possibility to economically coat semi-finished components (e.g. sheets) with a thin coating.• The application of LPPS for ceramic coatings is in itself an innovative process for this material family• The extension to new applications by improvement of the existing LPPS process as this can be achieved e.g. by solving the "dripping-anode" problem (DA-Problem) Paper includes a German-language abstract.

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