Effects of Substrate and Electrodeposition Parameters on the Microstructure of Hydroxyapatite Coating

Shahrezaei, Mostafa; Mirtaheri, Elnaz; Miryousefi, Hamed; Saremi, M.

doi:10.5812/jamm.27314

Cited by 5 publications

(3 citation statements)

References 11 publications

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“…This result shows that coating time also affects the mass growth of samples, but this research has a different result with another research that revealed EPD usually require shorttime treatment [17]. However, there are many types of research that have a similar result with this current research [38][39][40][41][42][43]. The graph also shows a positive correlation between coating time and mass growth of specimens similar to voltage treatment (Fig.…”

Section: Resultssupporting

confidence: 58%

Electrophoretic Deposition Performance of Hydroxyapatite Coating on Titanium Alloys for Orthopedic Implant Application

Nuswantoro

Juliadmi

Fajri

et al. 2020

MSF

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Hydroxyapatite (HA) is potentially used as a coating material for titanium alloys to improve their bioactivity and then enhancing the osseointegration characteristic of metal implants for orthopedic application. Electrophoretic Deposition (EPD), one of the coating methods that is widely applied for coating metal because of its simplicity and relatively low cost, is chosen for coating metal implants. HA coating layer quality can be controlled by adjusting applied voltages and coating time of the EPD process. However, the optimum voltage and exposing time has not yet been known for new type titanium implant such as Ti-12Cr and TNTZ. This work is, therefore, focusing on the effect of applied voltage and coating time on the mass growth, HA coating thickness, and surface coverage that can be produced on the surfaces of both alloys, and also on the conventional titanium alloy, Ti6Al4V, for comparison. The result of this work showed that there is a significant influence of the titanium alloy type on the HA layer performances. However, it is necessary to choose a suitable voltage and to expose time for producing a sufficient coating layer that meets the standard of orthopedic implants.

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Section: Resultssupporting

confidence: 58%

Electrophoretic Deposition Performance of Hydroxyapatite Coating on Titanium Alloys for Orthopedic Implant Application

Nuswantoro

Juliadmi

Fajri

et al. 2020

MSF

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“…As a result of the action and reaction of glass particles of different concentration of Sr dopants and the HBSS, different morphology of apatite layer were induced on same soaking time (14 day). The development of apatite in cluster form can be seen on the surface of sample Sr(0) (undoped BG) and fibrous-like structure of apatite [30] was observed on Sr(5), however the limited flake-like apatite formation [31] was observed on Sr(8) sample. It can be generally suggested that the crystallization of CaP has been restricted on the surfaces of Sr-containing bioactive glass, especially in specimens with high Sr dose (note to the results of FTIR).…”

Section: X-ray Diffraction (Xrd)mentioning

confidence: 99%

Effect of Sr on the Bioactivity of Sol-Gel Derived New Silicate Bioglass S55P4

Thet

Mohamad

Shariff

2020

MSF

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Strontium (Sr) stimulates osteoblast and inhibits osteoclast activities in-vitro and is used clinically as a treatment for osteoporosis. In this research, the effect of Sr substitution on the apatite formation of sol-gel derived bioactive glass (BG) (55.90SiO2-1.72P2O5 -21.67Na2O - (20.69-x) CaO -x SrO) (x=0, 5 and 8 mol. %) were investigated. The synthesized Sr doped BG samples were treated in Hank's Balanced Salt Solution (HBSS) for 14 days to study the bioactivity. The achieved samples were evaluated by X-ray powder diffraction (XRD) and Scanning electron microscope (SEM). In XRD, the hydroxyapatite (HA) crystalline peak for 8% Sr-BG is less compared with others. When Sr amount is increased to 8%, the low crystalline peaks of HA were detected although the same soaking duration. FTIR spectra supported the delay precipitation of calcium phosphate (CaP), especially for the specimen containing 8% Sr. After 14 days soaking, SEM images confirmed the bioactivity of the synthesized samples by the formation of apatite on the glass surface.

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“…It means low voltage supply insufficient energy for moving hydroxyapatite in suspensions. Research conducted by Shahrezaei et al [27] using 2V in 30 minutes for hydroxyapatite coating on magnesium alloy material results uniform coating with fine structure. A similar condition conducted by Santillan et al [28], voltage <2V produces properly non-adhered layers to the substrate.…”

Section: Introductionmentioning

confidence: 98%

Hydroxyapatite Coating on Titanium Alloy Ti-6Al-4V with Electrophoretic Deposition (EPD) for Dental Root Application

Juliadmi

Fauzi

Gunawarman

et al. 2017

International Journal on Advanced Science, Engineering and Information Technology

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An α+β type titanium alloy, Ti-6Al-4V, has been coated with hydroxyapatite through electrophoretic deposition (EPD) method to improve quality of the alloy surface, in order to fulfill bioactivity requirement for orthodontic application as dental roots. The deposition process was conducted by EPD at different voltages (2 volts, 5 volts, and 10 volts) and time (2 minutes and 5 minutes). After deposition, the material was heated at temperature 700 o C for 1 hour using a vacuum furnace. Coated samples analysis was conducted by scanning electron microscope (SEM) and energy dispersive X-ray (EDX) to examine coating layer morphology and its chemical composition, respectively. Experimental results showed that the voltage and time deposition gives different effects to surface coverage and thickness of hydroxyapatite layers. Optimum layer for dental roots is obtained from the voltage of 5 volts for 5 minutes with 100% surface coverage value and 45.55μm in thickness. With low voltage and short deposition time for making a uniform coating layer, this process is much cheaper than other processes, and it is predicted to be favorable for improving osseointegration of dental roots.

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Effects of Substrate and Electrodeposition Parameters on the Microstructure of Hydroxyapatite Coating

Cited by 5 publications

References 11 publications

Electrophoretic Deposition Performance of Hydroxyapatite Coating on Titanium Alloys for Orthopedic Implant Application

Electrophoretic Deposition Performance of Hydroxyapatite Coating on Titanium Alloys for Orthopedic Implant Application

Effect of Sr on the Bioactivity of Sol-Gel Derived New Silicate Bioglass S55P4

Hydroxyapatite Coating on Titanium Alloy Ti-6Al-4V with Electrophoretic Deposition (EPD) for Dental Root Application

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