Microstructure and surface mechanical properties of plasma spray deposited and post spray heat treated hydroxyapatite (HA) based composite coating on titanium alloy (Ti-6Al-4V) substrate

Kumari, Renu; Majumdar, Jyotsna Dutta

doi:10.1016/j.matchar.2017.06.011

Cited by 33 publications

(8 citation statements)

References 40 publications

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“…A large number of studies [ 81 , 192 , 193 , 194 , 195 , 196 ] have reported composite materials coatings modification using plasma-spraying treatment on titanium implant surfaces. Li et al [ 192 ] fabricated nano-TiO 2 /Ag and nano-TiO 2 coatings using a plasma-spraying technique on titanium substrates to improve the bioactive and antibacterial properties.…”

Section: Resultsmentioning

confidence: 99%

“…The results revealed that unheated treated HA-ZrO 2 and HA-TiO 2 coating modified by plasma-spraying showed better hydrophilicity than the heat-treated condition, and the water contact angle was 25° and 35°, respectively. It is worth mentioning that both ZrO 2 and heat treatment can enhance the hardness of material surfaces [ 196 ]. In a Sprague-Dawley rats model experiment for five weeks, the rate of bone mineralization of plasma-spraying ZnO(0.25 wt%)/SiO 2 (0.5 wt%)/Ag 2 O(2.0 wt%)-HA composite coating was 32%, while it was about 11% in the plasma-spraying HA coating group [ 197 ].…”

Section: Resultsmentioning

confidence: 99%

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Multi-Scale Surface Treatments of Titanium Implants for Rapid Osseointegration: A Review

et al. 2020

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The propose of this review was to summarize the advances in multi-scale surface technology of titanium implants to accelerate the osseointegration process. The several multi-scaled methods used for improving wettability, roughness, and bioactivity of implant surfaces are reviewed. In addition, macro-scale methods (e.g., 3D printing (3DP) and laser surface texturing (LST)), micro-scale (e.g., grit-blasting, acid-etching, and Sand-blasted, Large-grit, and Acid-etching (SLA)) and nano-scale methods (e.g., plasma-spraying and anodization) are also discussed, and these surfaces are known to have favorable properties in clinical applications. Functionalized coatings with organic and non-organic loadings suggest good prospects for the future of modern biotechnology. Nevertheless, because of high cost and low clinical validation, these partial coatings have not been commercially available so far. A large number of in vitro and in vivo investigations are necessary in order to obtain in-depth exploration about the efficiency of functional implant surfaces. The prospective titanium implants should possess the optimum chemistry, bionic characteristics, and standardized modern topographies to achieve rapid osseointegration.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Multi-Scale Surface Treatments of Titanium Implants for Rapid Osseointegration: A Review

et al. 2020

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“…70% hydroxyapatite (HA), 20% type I collagen fibrils, and about 10% water [13,14,15]. Unfortunately, HA coating often negatively affects the mechanical properties of the complete system (metal substrate + HA layer) [16,17]. Studies on the HA nanolayers revealed their tendency to form nano-sized crystals of a high surface area, and thereby result in faster dissolution in body fluids.…”

Section: Introductionmentioning

confidence: 99%

Titania Nanotubes/Hydroxyapatite Nanocomposites Produced with the Use of the Atomic Layer Deposition Technique: Estimation of Bioactivity and Nanomechanical Properties

et al. 2019

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Titanium dioxide nanotubes/hydroxyapatite nanocomposites were produced on a titanium alloy (Ti6Al4V/TNT/HA) and studied as a biocompatible coating for an implant surface modification. As a novel approach for this type of nanocomposite fabrication, the atomic layer deposition (ALD) method with an extremely low number of cycles was used to enrich titania nanotubes (TNT) with a very thin hydroxyapatite coating. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used for determination of the structure and the surface morphology of the fabricated nanocoatings. The biointegration activity of the layers was estimated based on fibroblasts’ proliferation on the TNT/HA surface. The antibacterial activity was determined by analyzing the ability of the layers to inhibit bacterial colonization and biofilm formation. Mechanical properties of the Ti6Al4V/TNT/HA samples were estimated by measuring the hardness, Young’s module, and susceptibility to scratching. The results revealed that the nanoporous titanium alloy coatings enriched with a very thin hydroxyapatite layer may be a promising way to achieve the desired balance between biofunctional and biomechanical properties of modern implants.

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“…The hydroxyapatite to be plasma sprayed onto an implant of pure metal converting itself from a powder form to a semi-liquid form creating a layer of the ceramic surrounding the metal base and this will allow the cells to benefit completely from the bioactivity of the ceramic while having the titanium to anchor the implant within the body. Another paper has also supported this method with one downside being that the material required further heat treatment in order to enhance the mechanical properties of the scaffold, therefore boosting its durability and strength [ 98 ].…”

Section: Advantage Of Metal-ceramic Composites As Bone Implantsmentioning

confidence: 99%

Prospect of Metal Ceramic (Titanium-Wollastonite) Composite as Permanent Bone Implants: A Narrative Review

et al. 2021

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This literature review discusses the influence of titanium ceramic composites as a biomaterial towards the fabrication of implants for orthopedic applications. The concept of applying metal-ceramic composites enable many novel combinations in the design and fabrication of complex materials which enhances functionality to improve cell and tissue matrix interactions particularly in the formation of bone. Specific focus is placed on its plethora of materials selected from the metals and ceramic group and identifying the optimal combination that matches them. The prospect of wollastonite as the ceramic counterpart is also highlighted. In this review, we have highlighted the different fabrication methods for such metal-ceramic materials as well as the role that these hybrids play in an in vitro and in vivo environment. Its economic potential as a bone implant material is also discussed.

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Microstructure and surface mechanical properties of plasma spray deposited and post spray heat treated hydroxyapatite (HA) based composite coating on titanium alloy (Ti-6Al-4V) substrate

Cited by 33 publications

References 40 publications

Multi-Scale Surface Treatments of Titanium Implants for Rapid Osseointegration: A Review

Multi-Scale Surface Treatments of Titanium Implants for Rapid Osseointegration: A Review

Titania Nanotubes/Hydroxyapatite Nanocomposites Produced with the Use of the Atomic Layer Deposition Technique: Estimation of Bioactivity and Nanomechanical Properties

Prospect of Metal Ceramic (Titanium-Wollastonite) Composite as Permanent Bone Implants: A Narrative Review

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