Bioactive Sol Gel Coatings Applied Using the Pneumatic Spray Technique on AISI 316L Stainless Steel

Bioactive coatings were obtained via the sol gel method and deposited on stainless steel AISI 316L using a pneumatic spray. TEOS and MTES were used as precursors, obtaining a hybrid sol; wollastonite bioactive particles were dispersed inside the sol. The corrosion resistance of the coatings was tested with potentiodynamic curves after immersion of the coatings in SBF for 7 and 40 days. It was possible to obtain coatings with a thickness of 47.7 ± 8 μm. In comparison with other methods of deposition, it was possible to obtain thicker coatings with the pneumatic spray deposition technique, giving the substrate a better protection factor against corrosion. After immersion in SBF (simulated physiologic fluid), the formation of an appetite film on the surface and inside the pores was observed. Deposition of the apatite film helps to promote Osseo integration, and the product formation inside the pores helps to improve corrosion resistance of the substrate.

[1]  A. Toro,et al.  Bioactive Sol Gel Coatings Applied Using the Pneumatic Spray Technique on AISI 316L Stainless Steel , 2015 .

[2]  Ebrahim Karamian,et al.  Original Research An in vitro evaluation of novel NHA/zircon plasma coating on 316L stainless steel dental implant , 2014 .

[3]  L. Kavitha,et al.  Corrosion protection performance of porous strontium hydroxyapatite coating on polypyrrole coated 316L stainless steel. , 2013, Colloids and surfaces. B, Biointerfaces.

[4]  R. Mozaffarinia,et al.  Corrosion and Wear Resistance Characterization of Environmentally Friendly Sol–gel Hybrid Nanocomposite Coating on AA5083 , 2013 .

[5]  D. Vashaee,et al.  A new double-layer sol–gel coating to improve the corrosion resistance of a medical-grade stainless steel in a simulated body fluid , 2013 .

[6]  Ke Ren,et al.  Therapeutic intervention for wear debris-induced aseptic implant loosening , 2013 .

[7]  J. Geringer,et al.  Atomic force microscopy investigations on pits and debris related to fretting-corrosion between 316L SS and PMMA , 2012 .

[8]  Chang Su Kim,et al.  Spray-coated ZnO electron transport layer for air-stable inverted organic solar cells , 2012 .

[9]  B. Darvell,et al.  Apatite-formation ability--predictor of "bioactivity"? , 2010, Acta biomaterialia.

[10]  M. Bohner,et al.  Can bioactivity be tested in vitro with SBF solution? , 2009, Biomaterials.

[11]  Gordon P. Bierwagen,et al.  Sol–gel coatings on metals for corrosion protection , 2009 .

[12]  M. Morra,et al.  Bioactive calcium silicate ceramics and coatings. , 2008, Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie.

[13]  M. Fathi,et al.  Preparation and characterization of sol–gel bioactive glass coating for improvement of biocompatibility of human body implant , 2008 .

[14]  A. Durán,et al.  Protective hybrid sol-gel coatings containing bioactive particles on surgical grade stainless steel: Surface characterization , 2007 .

[15]  A. Tan,et al.  Multilayer sol–gel coatings for corrosion protection of magnesium , 2005 .

[16]  K. Bozic,et al.  Wear and Osteolysis in Total Hip Arthroplasty , 2005 .

[17]  Si-yu Ni,et al.  Study of the mechanical property and in vitro biocompatibility of CaSiO3 ceramics , 2005 .

[18]  P. Sharkey,et al.  Particle bioreactivity and wear-mediated osteolysis. , 2004, The Journal of arthroplasty.

[19]  A. Durán,et al.  Bioactive coatings prepared by sol-gel on stainless steel 316L , 2004 .

[20]  P. Chu,et al.  Mechanism of apatite formation on wollastonite coatings in simulated body fluids. , 2004, Biomaterials.

[21]  Michel A. Aegerter,et al.  Liquid film spray deposition of transparent conducting oxide coatings , 2003 .

[22]  Xuanyong Liu,et al.  Morphology of apatite formed on surface of wollastonite coating soaked in simulate body fluid , 2002 .

[23]  M. Sayer,et al.  Piezoelectric thick film ultrasonic transducers fabricated by a sol-gel spray technique. , 2002, Ultrasonics.

[24]  Xuanyong Liu,et al.  Plasma sprayed wollastonite/TiO2 composite coatings on titanium alloys. , 2002, Biomaterials.

[25]  R. Parkhill,et al.  Application and evaluation of environmentally compliant spray-coated ormosil films as corrosion resistant treatments for aluminum 2024-T3 , 2001 .

[26]  B. Boyan,et al.  Phagocytosis of wear debris by osteoblasts affects differentiation and local factor production in a manner dependent on particle composition. , 2000, Biomaterials.

[27]  G W Marshall,et al.  Bioactive glass coatings with hydroxyapatite and Bioglass particles on Ti-based implants. 1. Processing. , 2000, Biomaterials.