J Mater Sci Technol ›› 1999, Vol. 15 ›› Issue (05): 473-477.

• Research Articles • Previous Articles     Next Articles

Preparation and Characterization of Ni-Ferrite Coating on Carbon Steel Coupons

M.P.Srinivasan, Santanu Bera, S.V.Narasimhan   

  1. Water and Steam Chemistry Laboratory, BARC Facilities, IGCAR CAMPUS, KALPAKKAM-603 102, Tamil Nadu, India
  • Received:1998-10-30 Revised:1999-05-17 Online:1999-09-28 Published:2009-10-10
  • Contact: S.V.Narasimhan

Abstract: The effect of the presence of Ni in solution as Ni-EDTA complex in lithiated water at room temperature and pH 10.5 on the formation of ferrite coating on carbon steel surface was studied in an autoclave at 523 K for 12 days at different Ni concentrations with varying amounts of free EDTA. The Ni-ferrite coating was characterized by XRD, SIMS and XPS and also bulk chemical analysis by AAS and UV-visible spectrophotometer. The chemical composition of Ni-ferrite coating showed variation with depth across solution-oxide interface to oxide-metal interface. The content of Ni in the oxide coating on the surface near solution-oxide interface was found to be higher than the average Ni content estimated by analysis after descaling the coating.

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