Performance improvement of Al‐alloyed materials via plasma spray coating

Serdar Salman (Technical Education Faculty, Marmara University, Goztepe‐Istanbul, Turkey)
Ali Topal (Technical Education Faculty, Marmara University, Goztepe‐Istanbul, Turkey)
Fehim Findik (Materials Technology Department, Sakarya University, Esentepe‐Adapazari, Turkey)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Publication date: 8 February 2008



The aim of the research is to increase piston and engine performance by using ceramic coated pistons instead of pistons which are manufactured from aluminum alloys and having a coated flame chamber.


Thermal torch and thermal shock tests were performed on the pistons and some specimens of 1.5 mm thick were prepared according to ASTM standards; both have the same material characteristics. In the present work, plasma spray technique was used for ceramic coating.


It was found that the ceramic coating, which, when performed properly, has compatible expansion coefficient with the aluminum alloy pistons, increases performance of pistons and engines.

Research limitations/implications

Coatings were limited with one type of bonding and two ceramics, and coated parts were subjected to thermal torch and thermal shock tests.

Practical implications

For future work, instead of using other coating materials, stable yttria is used as the best coating material with optimum thermal resistance. By this process, working life of the machine parts can be extended and a number of economical advantages may also be obtained.


This paper fulfils the identified information and offers practical help to the industrial firms working with ceramic coatings and also to the academicians working on wear of materials.



Salman, S., Topal, A. and Findik, F. (2008), "Performance improvement of Al‐alloyed materials via plasma spray coating", Industrial Lubrication and Tribology, Vol. 60 No. 1, pp. 4-8.

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Copyright © 2008, Emerald Group Publishing Limited

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