Thermal spraying has turned out to be an efficient means for the protection of surface areas against elevated temperature, wear, corrosion, hot gas corrosion and erosion in structural aircraft components. Particularly in jet engines numerous parts are coated by flame, detonation or plasma spraying technique. Development of new technologies and materials give rise to assume that thermal spraying techniques will gain more and more significance in aircraft and aerospace industries, as they provide excellent results, especially against wear and hot gas corrosion. In the paper, the applied methods of flame, detonation and plasma spraying will be explained. Electric arc spraying is applied too, but much less as compared to other processes. Possibilities to spray coatings which meet aircraft service requirements will be discussed, as well as methods for quality control, expecially non-destructive test methods. In particular, coating characteristics and properties obtained by different spray methods will be described, and special attention is paid to low pressure plasma spraying (LPPS). (Wassmann)
Sprayed coatings
Spritzbeschichtungen
1980
29 Seiten, 39 Bilder, 6 Tabellen, 29 Quellen
Conference paper
English
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