Development of phosphate inter layered hydroxyapatite coating for stainless steel implants

✍ Scribed by S.M.A. Shibli; A.C. Jayalekshmi

• Book ID: 104002272
• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 975 KB
• Volume: 254
• Category: Article
• ISSN: 0169-4332
• DOI: 10.1016/j.apsusc.2007.12.051

✦ Synopsis

As zinc phosphate acts as a versatile material for potential biomedical applications, it was modified into a thin layer coating for orthopaedic applications in the present study. A unique layering system consisting of pure substrate (316L SS), thick Fe-Zn alloy layers, thin ZnP layer on which a hydroxyapatite (HA) layer, was developed and studied. The composition, surface morphology and corrosion resistance characteristics of the layering system was evaluated. The stability of the multi-layered coating system consisting of ZnP inter layer, was evaluated by subjecting to different extent of dissolution in aggressive physiological media followed by allowing for re-growth in simulated body fluid (SBF). The coating system revealed good stability.