Structure and mechanical properties of hydroxyapatite coatings produced on titanium using plasma spraying with induction preheating

Fomin, Aleksandr; Fomina, Marina; Koshuro, Vladimir; Rodionov, I. V.; Zakharevich, Andrey M.; Skaptsov, Alexander A.

doi:10.1016/j.ceramint.2017.05.168

Cited by 62 publications

(15 citation statements)

References 58 publications

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“…The speed of degradation also depends upon the chemical properties of HAp, Ca/P ratio, crystal size, crystallinity and porosity [88]. After this time, the malfunction (dissolution) can take place starting from the surface and penetrates down to the The adhesive force between metallic substrate and adhesive is classified into three types (i) specific adhesion, (ii) mechanical force, and (iii) efficient adhesion [78,79]. The specific adhesion arises due to the presence of attractive forces between dissimilar molecules whereas mechanical adhesion is associated with forces present due to penetration of adhesive inside the microstructures of a substrate.…”

Section: Existing Challenges In Coating For Metallic Biomaterialsmentioning

confidence: 99%

Current Challenges and Innovative Developments in Hydroxyapatite-Based Coatings on Metallic Materials for Bone Implantation: A Review

et al. 2020

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Biomaterials are in use for the replacement and reconstruction of several tissues and organs as treatment and enhancement. Metallic, organic, and composites are some of the common materials currently in practice. Metallic materials contribute a big share of their mechanical strength and resistance to corrosion properties, while organic polymeric materials stand high due to their biocompatibility, biodegradability, and natural availability. To enhance the biocompatibility of these metals and alloys, coatings are frequently applied. Organic polymeric materials and ceramics are extensively utilized for this purpose due to their outstanding characteristics of biocompatibility and biodegradability. Hydroxyapatite (HAp) is the material from the ceramic class which is an ultimate candidate for coating on these metals for biomedical applications. HAp possesses similar chemical and structural characteristics to normal human bone. Due to the bioactivity and biocompatibility of HAp, it is used for bone implants for regenerating bone tissues. This review covers an extensive study of the development of HAp coatings specifically for the orthopaedic applications that include different coating techniques and the process parameters of these coating techniques. Additionally, the future direction and challenges have been also discussed briefly in this review, including the coating of HAp in combination with other calcium magnesium phosphates that occur naturally in human bone.

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Section: Existing Challenges In Coating For Metallic Biomaterialsmentioning

confidence: 99%

Current Challenges and Innovative Developments in Hydroxyapatite-Based Coatings on Metallic Materials for Bone Implantation: A Review

et al. 2020

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“…Geometrical factors such as shape and dimensions of HAp crystals have a significant impact on their biological response and mechanical properties under load bearing conditions [3,4]. Numerous deposition techniques of HAp on metallic substrates have been described, such as plasma spraying [5,6], electrophoresis [7], sol-gel [8], magnetron sputtering [9], and the hydrothermal method [10]. However, it is still a challenge to obtain HAp coatings with desirable properties, in particular HAp crystals with well-defined morphology and precisely adjustable sizes.…”

Section: Introductionmentioning

confidence: 99%

Ammonium Hydroxide Mediated Hydrothermal Crystallization of Hydroxyapatite Coatings on Titanium Substrate

et al. 2019

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Controlled growth of hydroxyapatite (HAp) coatings on titanium substrate plays an important role in the fabrication of the composites for bone tissue engineering. We describe the synthesis of the crystalline hydroxyapatite coatings on the Ti/TiO2 substrate through a hydrothermal method by using ethylenediamine tetraacetic acid disodium salt (Na2EDTA) and varying concentrations of ammonium hydroxide (NH4OH) in calcium-phosphate precursor solution. Na2EDTA serves as a chelating agent, while NH4OH is used as an alkaline source and crystal growth modifier. We characterized the HAp coatings using x-ray diffraction, scanning electron microscopy, and Raman spectroscopy. We also performed the elemental chemical analysis by means of a particle induced x–ray emission method. Our results show that there is a pH limit for which the hydrothermal deposition of HAp on titanium occurs. Moreover, we observed that NH4OH had a measurable influence on the coating thickness as well as on the size and shape of the HAp crystals. We found that with the increase of NH4OH concentration, the thickness of the Hap layer increases and its morphology changes from irregular flakes to well-defined hexagonal rods.

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“…Among different Caps, HA [Ca 10 (PO 4 ) 6 (OH) 2 ] is widely used due to its osseous nature and suitability to strong bonding with host bone tissues . Different coating methods have been utilized such as plasma spraying, dip coating, hot isostatic pressing, ion beam‐assisted deposition, pulsed laser deposition, sol–gel technique and electrophoretic deposition (EPD) . Among of these methods, EPD has several benefits such as better control thickness and morphology of the coating, components with complex shapes are deposited uniform, higher deposition rate than other coating technics and cheap equipment required …”

Section: Introductionmentioning

confidence: 99%

Electrochemical and biological characterization HA/Al₂O₃‐YSZ nano‐composite coatings using electrophoretic process

Askari

Yousefpour

Rajabi

2018

J Biomedical Materials Res

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In this research work, hydroxyapatite/alumina/YSZ bio nanocomposite coatings on titanium substrate were created by electrophoretic deposition (EPD) and reaction bonding process. By using the EPD process, uniform green form coatings containing HA, yttria-stabilized zirconia (YSZ), and aluminum particles were produced on titanium. After oxidation of aluminum at 660°C and sintering at 850°C, a dense and adherent HA/Al O /YSZ coating was produced. Scanning electron microscopy, X-ray diffractometric and mechanical tests were employed to investigate the morphologies, compositions, hardness, toughness and bonding strength of the coatings. The corrosion studies and cell culturing experiment were carried out and the results show that the HA/YSZ/Al O coatings are more bioactive and more resistance to corrosion than HA coatings. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1916-1922, 2018.

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Structure and mechanical properties of hydroxyapatite coatings produced on titanium using plasma spraying with induction preheating

Cited by 62 publications

References 58 publications

Current Challenges and Innovative Developments in Hydroxyapatite-Based Coatings on Metallic Materials for Bone Implantation: A Review

Current Challenges and Innovative Developments in Hydroxyapatite-Based Coatings on Metallic Materials for Bone Implantation: A Review

Ammonium Hydroxide Mediated Hydrothermal Crystallization of Hydroxyapatite Coatings on Titanium Substrate

Electrochemical and biological characterization HA/Al₂O₃‐YSZ nano‐composite coatings using electrophoretic process

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Structure and mechanical properties of hydroxyapatite coatings produced on titanium using plasma spraying with induction preheating

Cited by 62 publications

References 58 publications

Current Challenges and Innovative Developments in Hydroxyapatite-Based Coatings on Metallic Materials for Bone Implantation: A Review

Current Challenges and Innovative Developments in Hydroxyapatite-Based Coatings on Metallic Materials for Bone Implantation: A Review

Ammonium Hydroxide Mediated Hydrothermal Crystallization of Hydroxyapatite Coatings on Titanium Substrate

Electrochemical and biological characterization HA/Al2O3‐YSZ nano‐composite coatings using electrophoretic process

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Electrochemical and biological characterization HA/Al₂O₃‐YSZ nano‐composite coatings using electrophoretic process