Journal of Minerals & Materials Characterization & Engineering , Vol. 10, No.8, pp.717-726, 2011 jmmce.org Printed in the USA. All rights reserved 717 Thermal Sprayed CNT Reinforced Nanocomposite Coatings – A Review Manoj Kumar Singla 1* , Harpreet Singh 2 , Vikas Chawla 3 1) Mechanical Engineering Department, RIEIT,Railmajra Distt. SBS Nagar, India. 2) School of Mechanical Engineering, Materials & Energy Engineering, IIT Ropar, (PB), India. 3) Mechanical Engineering Department, FCET, Ferozeshah, Ferozepur, India. *Corresponding Author: manojsingla77@gmail.com ABSTRACT This review is done essentially to study results in the field of synthesis and characterization of Carbon Nanotubes (CNT’s) reinforced nanocomposite coatings using thermal sprayed coatings. CNT reinforced nanocomposite coatings produced by thermal spray process are being developed for a wide variety of applications, e.g. aerospace, automotive and sports equipment industries. It is anticipated that, if properly deposited, nanocomposite ceramic coatings could also provide improved properties like wear resistance and thermal barrier coatings. These results clearly demonstrate that the significant improvement in coating performance can be achieved by utilizing proper thermal sprayed nanocomposite coatings. Thermal sprayed nanocomposite coatings shows improvement of resistance to wear, erosion, corrosion and mechanical properties. The purpose of this paper is to review CNT reinforced nanocomposite coatings using thermal spray by various researchers. Keywords: Thermal spraying, nanocomposite coatings, Feedstock material, Erosion, Wear resistance, Corrosion resistance, Ball milling. 1. INTRODUCTION The materials having high strength to weight ratio is the need of the hour. There are different techniques of fabricating Metal Matrix Composites to have tailor made properties depending on the particular application. Metal matrix composites (MMCs) have been widely recognized to have relatively superior mechanical properties, such as better wear resistance, higher elastic modulus and yield strength, as compared to the unreinforced monolithic metal. As compared to fiber reinforced MMCs, particulate reinforced MMCs are gaining popularity due to their ease of