Microstructural investigation of porous titanium coatings, produced by thermal spraying techniques, using plasma atomization and hydride-dehydride powders, for orthopedic implants

Gkomoza, Paraskevi; Lampropoulos, G.S.; Vardavoulias, M.; Pantelis, Dimitrios; Karakizis, P. N.; Sarafoglou, Ch.

doi:10.1016/j.surfcoat.2018.10.072

Cited by 27 publications

(10 citation statements)

References 20 publications

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“…The exact dimensions of the plates are difficult to determine, since they are tightly fused with the rods. Comparing the data obtained with the literature [15,17], it can be assumed that the aggregate-like relief is formed as a result of the adsorption of various titanium ions: Ti(OH)2 2+ and [Ti(H2O)6] 4+ . A micrograph with a view field of 1000 µm of modified spherical titanium hydride (Figure 4) The analysis of images of the microstructure of the surface of spherical titanium hydride granules modified under dynamic conditions at pH = 4-5 (Figure 4) showed that the surface of titanium hydride granules is completely covered with an adsorption layer with a pronounced aggregate-like relief.…”

Section: Resultssupporting

confidence: 52%

“…The analysis of the available research in this direction [3,4,14] showed that the regulation of the conditions for the production (pressure and temperature conditions) of spherical titanium hydride granules does not solve the problem of the formation of surface microcracks. The most promising method is to "heal" microcracks by artificially creating a multi-barrier system of energy "traps" on the surface of the granule, which makes it possible to slow down the processes of thermal diffusion of hydrogen from the crystal lattice of titanium hydride at high temperatures and protect titanium from oxidation [5,[15][16][17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

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Increasing the Adherence of Metallic Copper to the Surface of Titanium Hydride

et al. 2021

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Studies have been carried out to increase the adhesive interaction between a titanium hydride substrate and a copper coating. An additional layer containing chemically active groups was created on the surface of the spherical titanium hydride by chemisorption modification. This paper discusses the results of scanning electron microscopy (SEM) using energy-dispersive X-ray spectroscopic mapping of coatings obtained on spherical granules of titanium hydride before and after adsorption modification. The mechanism of interaction of the surface of spherical granules of titanium hydride and titanium sulfate salt is proposed. It is shown that the creation of a chemisorbed layer of hydroxotitanyl and the subsequent electrodeposition of metallic copper contribute to the formation of a multilayer shell of a titanium–copper coating on the surface of spherical titanium hydride granules (≡Ti-O-Cu-) with a high adhesive interaction. Results have been given for an experimental study of the thermal stability of the initial spherical granules of titanium hydride and granules coated with a multilayer titanium-copper shell.

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Section: Resultssupporting

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Increasing the Adherence of Metallic Copper to the Surface of Titanium Hydride

et al. 2021

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“…Termal Sprey Yöntemleri Alev sprey [118] Plazma sprey [119] Yüksek hızlı oksiyakıt sprey (HVOF) [120]- [124] Detonasyon tabancası (D-GUN) [125] Ortopedik implantlarda en yaygın olarak kullanılan kaplama yöntemleridir. ∼30 -200 μm kalınlığında pürüzlü Ti, HA, Ca2SiO3, Al2O3, ZrO2, TiO2 gibi kaplamalar ile aşınma direnci, korozyon direnci ile biyouyumluluk ve osseointegrasyon özellikleri iyileştirilir.…”

Section: Metot Değiştirilmiş Katman Ve Amacıunclassified

Biomaterials Used in Orthopedic Implants

Güner¹,

Meran²

2020

Pamukkale J Eng Sci

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Ortopedide biyomalzemeler, travma sonucu kırılan kemiklerin iyileşmesi için sabitleme ya da osteoporoz gibi bir hastalık tarafından hasar gören eklem ya da kemiklerin yerini alması amacıyla kullanılır. Bu malzemelerin çoğunluğunu metaller oluşturmaktadır. Metal olmayan malzemeler ise seramikler, polimerler ve kompozitler olarak üçe ayrılabilir. Bu çalışmada ortopedik implantların üretiminde kullanılan biyomalzemelerin çeşitleri, temel özellikleri, avantaj ve dezavantajları, kullanım alanları ve malzeme seçimine bağlı olarak oluşabilecek sorunlar özetlenmiştir.Orthopedic biomaterials are used in replacement of joints or bones that are damaged by a disease such as osteoporosis or fixation of broken bones. Majority of these materials are metals. Non-metallic materials can be separated into three groups as ceramics, polymers and composites. In this study, the types, fundamental properties, advantages and disadvantages of biomaterials used in the production of orthopedic implants are summarized.

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“…At present, the surface treatment methods commonly used on the surface of marine equipment include thermal spraying, organic coating, hot dip plating, and the like [6][7][8][9]. In the preparation of thermal spray coating, it becomes semi-molten or molten during the thermal spraying process.…”

Section: Introductionmentioning

confidence: 99%

Anticorrosion Properties of Zn–Al Composite Coating Prepared by Cold Spraying

Wang

Xiong

et al. 2019

Coatings

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In order to slow down the corrosion and wear of offshore equipment, the Zn–Al composite coating was prepared on Q345 substrate by cold spray technique. The mass fraction of Zn and Al in the raw material was 2:3. The microstructure of the original coating was observed by scanning electron microscopy (SEM) and was characterized by energy dispersive spectrometer (EDS). From the composite alloy coating obtained by cold spraying, it was observed that the Zn and Al particles were uniformly distributed without oxidation product, and the powder particles were significantly plastically deformed. The microstructure of the composite coating is very dense and has strong adhesion to the substrate. Neutral salt spray test (NSS) and electrochemical accelerated corrosion test results showed that Zn–Al composite coating can effectively provide corrosion protection.

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Microstructural investigation of porous titanium coatings, produced by thermal spraying techniques, using plasma atomization and hydride-dehydride powders, for orthopedic implants

Cited by 27 publications

References 20 publications

Increasing the Adherence of Metallic Copper to the Surface of Titanium Hydride

Increasing the Adherence of Metallic Copper to the Surface of Titanium Hydride

Biomaterials Used in Orthopedic Implants

Anticorrosion Properties of Zn–Al Composite Coating Prepared by Cold Spraying

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