Electrophoretic deposition of silica and its composite coatings on Ti-6Al-4V, and its in vitro corrosion behaviour for biomedical applications

Chellappa, M.; Vijayalakshmi, U.

doi:10.1016/j.msec.2016.10.075

Cited by 37 publications

(24 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In our previous study, silica and zinc oxide composite coating was developed on Ti-6Al-4V by EPD method using iodine (I 2 ) and Polyvinylpyrrolidone K30 (PVP-K30) as additives. The ZnO particles act as a pore plugging material for the porous silica coating and enhanced the corrosion resistance behavior [11]. Similarly, titanium and zinc oxide [12], zirconia and zinc oxide [13], composite coatings have shown improved corrosion resistance with better biocompatibility properties.…”

Section: Introductionmentioning

confidence: 99%

Improved corrosion resistant and mechanical behavior of distinct composite coatings (silica/titania/zirconia) on Ti–6Al–4V deposited by EPD

Chellappa¹,

Vijayalakshmi²

2017

Journal of Asian Ceramic Societies

Self Cite

View full text Add to dashboard Cite

Synthesized composite powders (ZrO 2 /TiO 2 , SiO 2 /TiO 2 , and SiO 2 /ZrO 2) were successfully deposited on Ti-6Al-4V by electrophoretic deposition method (EPD) to improve its electrochemical characteristics for better biomedical applications. In the present investigation, the three composite powders were prepared by sol-gel synthesis and its phase purity was analyzed by Powder X-ray diffraction (XRD) method. Further, the performance of the deposited coatings was assessed by scanning electron microscopy (SEM) coupled with energy dispersive X-ray analysis (EDAX), scratch resistance test. The electrochemical properties of the composite coatings were analyzed by Potentiodynamic (Tafel) polarization and electrochemical impedance spectroscopy (EIS) studies. From the results, we observed that the corrosion resistance behavior of the different composite coated metallic substrate exhibited divergent corrosion resistance nature than blank Ti-6Al-4V. Of all these coatings on Ti-6Al-4V, the composite made up of, ZrO 2 /TiO 2 has pronounced corrosion resistance behavior in Ringer's solution when compared to others. This behavior is due to the presence of strong adherent coating owing to the existence of uniform deposition on Ti-6Al-4V.

show abstract

Section: Introductionmentioning

confidence: 99%

Improved corrosion resistant and mechanical behavior of distinct composite coatings (silica/titania/zirconia) on Ti–6Al–4V deposited by EPD

Chellappa¹,

Vijayalakshmi²

2017

Journal of Asian Ceramic Societies

Self Cite

View full text Add to dashboard Cite

show abstract

“…The biggest peak at 1070 cm −1 relates to the stretching vibrational bands of the Si–O–Si or O–Si–O functional group, which is not present in the spectra of GaW 11 ‐APTES@SiO 2. Vibrational modes of CH 2 group are observed at 871 cm −1 , whereas the band with peak at 971 cm −1 is assigned to Si–O–Si stretching modes . Small peaks at about 1505 cm −1 correspond to bending vibrations of the C–H bond.…”

Section: Resultsmentioning

confidence: 97%

“…For instance, the peaks at 804 and 828 cm −1 correspond to both asymmetric and symmetric stretching vibrations of Si–O–Si . Also, one may observe the vibrational mode of CH 2 group at 871 cm −1 and the deformation mode of the Si–CH 2 peaking at 1410 cm −1 . The 1587 and 1471 cm −1 peaks are assigned to the deformation modes of the amine groups from APTES, which are very strongly hydrogen bonded to the silanol groups to form cyclic structures.…”

Section: Resultsmentioning

confidence: 99%

Novel Gallium Polyoxometalate/Nano‐Gold Hybrid Material Supported on Nano‐sized Silica for Mild Cyclohexene Oxidation Using Molecular Oxygen

Jameel

Chen

et al. 2017

Bulletin Korean Chem Soc

View full text Add to dashboard Cite

Selective oxidation of olefins using molecular oxygen is a great challenge. This study reports two types of novel eco‐friendly heterogeneous hybrid catalysts. One comprises of a lacunary Keggin‐type polyoxometalate (POM) GaW11 linked to nano‐sized silica using (3‐aminopropyl) triethoxysilane (APTES) to form GaW11‐APTES@SiO2 . Another catalyst is Au/GaW11‐APTES@SiO2 prepared by wet deposition of nano‐gold on the former one. The catalysts were characterized and used for the solvent‐free oxidation of cyclohexene with molecular oxygen under mild reaction conditions. Both the catalysts showed good conversion and significant selectivity towards oxidized products for cyclohexene. GaW11‐APTES@SiO2 showed a high conversion of up to 62.02% with a selectivity of 59.13% towards epoxide at a mild temperature of 50°C. Au/GaW11‐APTES@SiO2 showed a conversion of 69.32% with 57.34% selectivity to 2‐cyclohexene‐1‐ol at a temperature of 80°C. The heterogeneous catalysts were reused several times with no significant loss in conversion or selectivity towards the oxidized products.

show abstract

“…The research on TiO 2 /hydroxyapatite photocatalytic materials may derive from researches on TiO 2 /hydroxyapatite composites in medical industry. To achieve biocompatibility, osteoconduction, and osseointegration, the surface of titanium or its alloy, which is used as a permanent implant material, must be modified by developing hydroxyapatite (HAp, Ca 10 (PO 4 ) 6 (OH) 2 ) coating on the surface [3][4][5][6][7][8][9]. By inserting TiO 2 inner layer between HAp coating and Ti substrate, the adhesion strength of the coating and the substrate increases [10].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Role of Hydroxyapatite in TiO2/ Hydroxyapatite Photocatalytic Materials

Truc¹,

Hong²,

No³

2019

Photocatalysts - Applications and Attributes

View full text Add to dashboard Cite

The TiO 2 /hydroxyapatite (HAp) composite has attracted much attention as a photocatalyst for pollution treatment in water or air because this composite can improve the properties of pure TiO 2 including a low efficiency, narrow light response range, low adsorption capacity for hydrophobic contaminants, and difficult recovery of TiO 2 particles after using in Aquarius environment. To obtain the best composite containing the two components including TiO 2 and HAp, the role of HAp in TiO 2 /hydroxyapatite photocatalytic material should be analyzed and evaluated. This chapter will significantly present a review of the role of HAp in the TiO 2 /hydroxyapatite composite including the adsorption ability of contaminations and the promoted impacts of HAp component.

show abstract

Electrophoretic deposition of silica and its composite coatings on Ti-6Al-4V, and its in vitro corrosion behaviour for biomedical applications

Cited by 37 publications

References 49 publications

Improved corrosion resistant and mechanical behavior of distinct composite coatings (silica/titania/zirconia) on Ti–6Al–4V deposited by EPD

Improved corrosion resistant and mechanical behavior of distinct composite coatings (silica/titania/zirconia) on Ti–6Al–4V deposited by EPD

Novel Gallium Polyoxometalate/Nano‐Gold Hybrid Material Supported on Nano‐sized Silica for Mild Cyclohexene Oxidation Using Molecular Oxygen

Evaluation of the Role of Hydroxyapatite in TiO2/ Hydroxyapatite Photocatalytic Materials

Contact Info

Product

Resources

About