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Paper Information

Journal:   IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING   MARCH 2005 , Volume 1 , Number 1; Page(s) 9 To 20.
 
Paper: 

SURFACE TREATMENT AND BIOCERAMIC COATING FOR THE IMPROVEMENT OF HUMAN BODY IMPLANT BIOCOMPATIBILITY

 
 
Author(s):  FATHI MOHAMMAD HOSSEIN, SALEHI MAHDI, PARSAPOUR A.
 
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Abstract: 

The aim of this studies the simultaneous imprudent of the corrosion behavior and biocompatibility of metallic implant and bone Osseo integration simultaneously. Stainless steel 316L (SS) was used as metallic substrate and after surface- treatment with 15% sulfuric acid was coated with hydroxyapatite coating employing plasma-spraying process. Structural characterization techniques including XRD, SEM, and EDX were also utilized to investigate the microstructure, morphology, and crystallinity of the coating. Electrochemical potentiodynamic tests were performed in two types of physiological solutions in order to determine and compare the corrosion resistance behavior of the coated and uncoated specimens as an indication of biocompatibility.
The results indicate that the surface treatment and hydroxyapatite coating improve the corrosion resistance behavior of SS. The corrosion current density of the surface treated and the hydroxyapatite coated SS also decrease. These also show that surface-treated and hydroxyapatite-coated SS can be used as human body implants with the goals of corrosion resistance improvement (biocompatibility) and bone osseointegration simultaneously.

 
Keyword(s): HUMAN BODY IMPLANT, SURFACE TREATMENT, PLASMA SPRAY COATING, HYDROXYAPATITE COATING, CORROSION BEHAVIOR, STAINLESS STEEL 316L
 
References: 
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