Enhancing longevity and performance: The effects of ZrO2 and TaC coatings on pistons in internal combustion engines-Reference-Cited by-同舟云学术

Enhancing longevity and performance: The effects of ZrO2 and TaC coatings on pistons in internal combustion engines

Published:2024 Issue:7-8 Volume:89 Page:1093-1105
ISSN:0352-5139
Container-title:Journal of the Serbian Chemical Society
language:en
Short-container-title:J Serb Chem Soc

Author:

Rengarajan Sathish¹,Muhammed Rameeza¹,Vijayan D.²,Abrar Muhammed³

Affiliation:

1. Department of Mechanical Engineering, St. Joseph’s College of Engineering OMR, Chennai, Tamil Nadu, India

2. Department of Mechanical Engineering, SCSVMV University, Enathur, Kanchipuram, Tamil Nadu, India

3. Department of Mechanical Engineering, St. Joseph’s Institute of Technology, OMR, Chennai, Tamil Nadu, India

Abstract

Coating of pistons with ZrO2 and TaC improves their longevity and performance in internal combustion engines by enhancing the resistance to wear, heat and corrosion. In this study the plasma spray coating is performed on crown of the piston with the combination of the percentage composition namely, 95 % ZrO2 + 5 % TaC, 98 % ZrO2 + 2 % TaC and 100 % ZrO2. Among the three 95 % ZrO2 + 5 % TaC composition shows better results. The increase in ZrO2 content leads to the formation of a more integrated scale with fewer pores. Higher concentrations of ZrO2 in the coatings lead to the increased interaction with discharge sparks and instability of the process. At elevated temperatures, a two-phase material of cubic zirconium dioxide and hexagonal corundum was formed. The bonding strength of the coating is influenced by the addition of TaC and the power input during the spraying operation. The microstructure of ZrO2 and TaC coatings on aluminium alloy is characterized by granular structure, tightly packed pores and partially melted ZrO2 particles. The coating had a uniform structure with columnar and cluster-like elements, influenced by ZrO2 concentration.

Publisher

National Library of Serbia

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