Increasing demands placed on aerospace systems with respect to performance, lifetime, and operational environment have pushed lubrication and coatings technology to its limit. To meet increased demands, a number of hard, wear resistant coating materials and deposition processes are being developed. Discussion in this paper includes transition metal nitrides/carbides and diamond-like carbon (DLC). In particular, the use of these materials in multilayer and functionally gradient architectures and as corrosion resistant, boundary lubricants for candidate high temperature turbine engine oils is highlighted. To effectively use new coating materials, processes that permit the growth of coatings at low temperature are required. This prevents loss of dimensional tolerance and loss of mechanical properties of precision components. Several low temperature deposition processes are discussed, including a combined pulsed laser deposition - sputter source that permits the growth of infinitely variable gradients and sharp interfaces.
Advanced hard coatings and wear resistant materials for aerospace
Fortschrittliche harte Beschichtungen und verschleißfeste Materialien für die Raumfahrt
1996
12 Seiten, 6 Bilder, 3 Tabellen, 35 Quellen
Conference paper
English
Aerospace wear and corrosion-resistant coatings - A perspective
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