Journal of Material Sciences & Engineering

Kareem AA

Publications

• Research Article
  Microhardness and Adhesion Strength of PMC’s Coatings by NiCr Alloy
  Author(s): Kareem AA and Raheem ZKareem AA and Raheem Z
  
  The use of polymer matrix composites (PMCs) in the gas flow path of advanced turbine engines offers significant benefits for aircraft engine performance but their useful lifetime is limited by their poor environmental resistance. Flame sprayed NiCr graded coatings are being investigated as a method to address this technology gap by providing high temperature and environmental protection to polymer matrix composites. In this research coating was spread with two configuration, coating with bound coat and coating without bound coat. In general the coating with bound coat and coating without bound coat showed increase in micro hardness and adhesion with increase curing temperature; this is due to the microstructural changes the physical splat structure of the coating also changes with heat treatment. All coating failed at the interface between the composites and the coating, failure occur.. Read More»
  DOI: 10.4172/2169-0022.1000306

  Abstract PDF