Characterisation of Plasma Sprayed CNT-Alumina Composite Coatings on Boiler Tube Steel

Authors

  • Rakesh Goyal
  • Buta Singh Sidhu
  • Vikas Chawla

Keywords:

Corrosion, thermal spray, carbon nanotubes, boiler steel, microstructure

Abstract

In this research work, the 1.5, 2 and 4 wt.% CNTs-Al2O3 coatings were prepared and successfully deposited on T22 boiler tube steel using plasma spray process. Ni-Cr was also used as bond coat before applying CNTs-Al2O3 coatings. The coatings were subjected to metallography, XRD and SEM/EDAX analysis. The porosity of CNTs-Al2O3 mixed coatings on T22 boiler steel was found to be decreasing with increase in CNTs content. The CNTs were found to be uniformly distributed within the Al2O3 matrix. The CNTs were chemically stable during the spray forming and did not react to form oxides or aluminium carbides even at very high processing temperature.


 

Cite this Article

 

Rakesh Goyal, Buta Singh Sidhu, Vikas Chawla. Characterisation of Plasma Sprayed CNT-Alumina Composite Coatings on Boiler Tube Steel. Journal of Polymer & Composites. 2017; 5(3): 1–17p.


Author Biography

  • Rakesh Goyal

    Research Scholar, Department of Mechanical Engineering, I.K.G. Punjab Technical University, Kapurthala, Punjab, India

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Published

2018-02-08

Issue

Vol. 5 No. 3 (2017)

Section

Articles

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