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Study of the plasma deposition of Al2O3 powder on an internal combustion engine piston

E. S. BARCA1, A. G. PLAIASU1, M. ABRUDEANU1, B. ISTRATE2, D. LUCA3,* , C. MUNTEANU2

Affiliation

  1. Department of Manufacturing and Industrial Management, University of Pitesti, 110040 Pitesti, Romania
  2. Department of Mechanical Engineering, Mechatronics and Robotics, Technical University, 700050 Iasi, Romania
  3. Department of Technologies and Equipments for Materials Processing, Technical University, 700050 Iasi, Romania

Abstract

Due to high temperatures that can be found in the engine’s combustion chamber some wear appears in the components. A proposed method for reducing the wear of the piston is plasma deposition of a ceramic layer of Al2O3. Thermal spraying is a method for obtaining parts that contain areas with special properties. For proper adhesion of the ceramic layer to the substrate an intermediate NiCr layer was used in the analysis. Choosing this type of powder was made according to the thermal wear resistance desired for the obtained ceramic layer. In thermal barrier coatings, high porosity is desirable because the thermal conductivity of the coating is low due to porosity. For a complete analysis of the coating both SEM and XRD analysis were performed on the samples subjected to high temperature. Also a finite element analysis of the piston with ceramic layer was done to determine the influence of the coating..

Keywords

Atmospheric plasma spraying, Al2O3 powder, Scanning electron microscopy, Finite element analysis.

Submitted at: March 18, 2015
Accepted at: Sept. 9, 2015

Citation

E. S. BARCA, A. G. PLAIASU, M. ABRUDEANU, B. ISTRATE, D. LUCA, C. MUNTEANU, Study of the plasma deposition of Al2O3 powder on an internal combustion engine piston, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 9-10, pp. 1522-1527 (2015)