TRIBOLGICAL & WEAR BEHAVIOR OF YTTRIA STABILIZED ZIRCONIA THERMAL BARRIER COATINGS ON MILD STEEL
Keywords:
Wear, Thermal Barrier Coatings, Tribology, Thermal Spray, Yttria stabilized Zirconia.Abstract
The perfection of the temperature confrontation of the engine essentials can be obtained by claim of a single ceramic thermal barrier coating (TBC) or several composite layers. Engine elements protected by TBC can work safely in elevated temperature range above 1000 °C. Continuous endeavor to increase thermal resistance of engine the elements requires, apart from laboratory investigations, also numerical study of the different engine parts.. The high temperatures and stress concentrations can act as the local sources of damage initiation and defects propagation in the form of cracks. The current study focuses the development of yittria stabilized zirconia thermal barrier coating by Thermal spray technique. Mild steel was used as a substrate and the coating was then characterized for tribological analysis followed by the optical analysis of wear tracks and found the TBC behavior more promising then steel.
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