Application of thermal barrier coatings (TBCs) in diesel engines offers benefits through improved component lifetimes, better thermal efficiency, and lower environmental emissions. Work done in this area within COST 501 is summarised and proposals to improve coating quality through enhanced control of the plasma spraying process are put forward. The control system will use fuzzy logic to optimise spraying parameters forindividual components. Of great importance is the cooling profile undergone by the component after coating, which must be designed to provide residual strains that will enhance coating lifetime.
Get full access to this article
View all access options for this article.
References
1.
GASTERH.: Proc. 1st NATO Advanced Workshop on Coatings for Heat Engines, Acquafredda di Maratea, Italy, April1994, Vol. II, 437.
2.
KVERNESI., LUGSCHEIDERE., and NORHOLMO.: Proc. 1st Plasma-Technik Symp., Lucerne, Switzerland, May1988, Vol. 3.
3.
WOSCHINIG. and SPESIDENW.: Proc. Int. Combustion Engine Symp., Energy Technology Conf., New Orleans, LA, USA, January1988.
4.
MIYAIRIY. et al.: SEA Trans., J. Engines, 1989, 98, (3).
5.
OZAWAT.et al.: Proc. 33rd Int. Fisita Cong., Turin, Italy, May1990.
6.
AKIDASA. C.: ‘Performance and emissions - achievements with uncooled heavy- duty, single cylinder diesel engine’, SAE Report, Society of Automotive Engineers, Warrendale, PA, USA, 1989.
7.
WINKLERM. F. and PARKERS. W.: Adv. Mater. Process., 1992, (5).
8.
COST 501 II, Work Packages 6 and 7, European Commission, Brussels, Belgium.
9.
PANTUCEKP. and KVERNESI.: in ‘Materials for advanced power engineering’, Part 1, 741; 1994, Norwell, MA, Kluwer Academic.
