HA/β-TCP plasma sprayed coatings on Ti substrate for biomedical applications

Pillai, Rahul; Frasnelli, Matteo

doi:10.1016/j.ceramint.2017.08.113

Cited by 67 publications

(23 citation statements)

References 33 publications

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“…One of the most investigated methods of material deposition is a plasma spray coating. Thanks to its ability to deposit metallic alloys, oxides, and ceramics, this process offers a wide range of applications in biomaterial and body implants coatings [81,82]. This process is similar to HVOF and HVSFS coating techniques.…”

Section: Bioactive Materials Deposition Techniquesmentioning

confidence: 99%

Coating Techniques for Functional Enhancement of Metal Implants for Bone Replacement: A Review

2019

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To facilitate patient healing in injuries and bone fractures, metallic implants have been in use for a long time. As metallic biomaterials have offered desirable mechanical strength higher than the stiffness of human bone, they have maintained their place. However, in many case studies, it has been observed that these metallic biomaterials undergo a series of corrosion reactions in human body fluid. The products of these reactions are released metallic ions, which are toxic in high dosages. On the other hand, as these metallic implants have different material structures and compositions than that of human bone, the process of healing takes a longer time and bone/implant interface forms slower. To resolve this issue, researchers have proposed depositing coatings, such as hydroxyapatite (HA), polycaprolactone (PCL), metallic oxides (e.g., TiO2, Al2O3), etc., on implant substrates in order to enhance bone/implant interaction while covering the substrate from corrosion. Due to many useful HA characteristics, the outcome of various studies has proved that after coating with HA, the implants enjoy enhanced corrosion resistance and less metallic ion release while the bone ingrowth has been increased. As a result, a significant reduction in patient healing time with less loss of mechanical strength of implants has been achieved. Some of the most reliable coating processes for biomaterials, to date, capable of depositing HA on implant substrate are known as sol-gel, high-velocity oxy-fuel-based deposition, plasma spraying, and electrochemical coatings. In this article, all these coating methods are categorized and investigated, and a comparative study of these techniques is presented.

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Section: Bioactive Materials Deposition Techniquesmentioning

confidence: 99%

Coating Techniques for Functional Enhancement of Metal Implants for Bone Replacement: A Review

2019

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“…The surface treatment technology, which is applicable to titanium alloys, includes hot dipping [9,10], vapor deposition [11], thermal spray [12,13], and laser cladding [14][15][16][17][18]. Research increasingly shows that these technologies can improve the high temperature oxidation resistance, corrosion resistance, wear resistance, and biological activity of titanium alloys [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Microstructure Features and High Temperature Oxidation Resistance of In-Situ TiN-Ti Composite Coatings by Plasma Transferred Arc Welding

et al. 2020

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In order to improve the high temperature oxidation resistance of Ti6Al4V alloy, the in-situ TiN-Ti composite coatings were prepared with Ti-Cr-Ni-Nb powders by plasma transferred arc welding. Nitrogen gas was used as the transport gas and provided N source for the formation reaction of TiN. Microstructure features and high temperature oxidation behaviors of the composite coatings were studied. The phases in the composite coatings were TiN, Ti, CrN, and NiTi. It was clearly observed that in-situ TiN particles were evenly distributed in the Ti matrix. A little Nb atom dissolved in TiN particles, and others dissolved in the Ti matrix. By comparing the curve of Ti6Al4V alloy to that of the composite coatings, the oxidation mass gain of the composite coatings was comparatively less. The oxidation film of the composite coatings was smooth and compact, and no crack was visibly observed. Based on the results of the high temperature tests, the composite coatings exhibited superior high temperature oxidation resistance than Ti6Al4V alloy both at 650 °C and at 850 °C.

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“…Only few works have explored the deposition of HA and TCP coatings by the conventional APS process with the aim to study the dissolution behaviour [14]. To the best of our knowledge, the deposition of pure TCP coatings by SPS has not been studied yet.…”

Section: Introductionmentioning

confidence: 99%

Deposition of hydroxyapatite and tricalcium phosphate coatings by suspension plasma spraying: Effects of torch speed

Ročňáková

Slámečka

Montúfar

et al. 2018

Journal of the European Ceramic Society

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This research focuses on the deposition of hydroxyapatite (HA) and tricalcium phosphate (TCP) coatings produced by suspension plasma spraying (SPS) using in-house liquid feedstock suspensions. The work studied the effects of torch speed on the thickness, microstructure, and crystalline composition of the coatings. SPS allowed the deposition of HA and TCP coatings with thickness between 28 and 90 m. The coatings presented lamellar microstructure with complex porosity between the splats. Micropores ranging from 0.2 to 6 µm and close mesopores, from 8 to 45 µm, had a spherical morphology and were homogenously distributed within the coatings. Water evaporation during SPS allowed the

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HA/β-TCP plasma sprayed coatings on Ti substrate for biomedical applications

Cited by 67 publications

References 33 publications

Coating Techniques for Functional Enhancement of Metal Implants for Bone Replacement: A Review

Coating Techniques for Functional Enhancement of Metal Implants for Bone Replacement: A Review

Microstructure Features and High Temperature Oxidation Resistance of In-Situ TiN-Ti Composite Coatings by Plasma Transferred Arc Welding

Deposition of hydroxyapatite and tricalcium phosphate coatings by suspension plasma spraying: Effects of torch speed

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