Advanced Surface Treatments on Titanium and Titanium Alloys Focused on Electrochemical and Physical Technologies for Biomedical Applications

Fuentes, Elena; Alves, Sofia A.; López-Ortega, A.; LucíaMendizabal,; Viteri, Virginia Sáenz de

doi:10.5772/intechopen.85095

Cited by 14 publications

(5 citation statements)

References 150 publications

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“…The fact is that part of the oxygen in the powder is associated with the surface of titanium powders. This surface is an oxide film -a thin layer of titanium dioxide with a thickness of ~3-10 nm [48][49][50]. Therefore, the achievement of these indicators will require the development of techniques for managing the specific surface area and its reduction.…”

Section: Determining Quality Indicators Of the Resulting Product Acco...mentioning

confidence: 99%

Development of a technology to produce titanium powder with a low carbon footprint

Gonchar¹,

Troshchylo²,

Brodskyy³

et al. 2023

EEJET

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This paper reports the analysis of modern technologies for the production of titanium from oxide raw materials. It has been established that current industrial methods for producing titanium require the use of carbon as a reducing agent and, accordingly, cannot decrease carbon emissions without changing the technology. That is why devising a technology for producing titanium with a reduction in emissions of carbon components is a relevant task. So, the object of research is the technology of obtaining titanium from its oxide without the use of carbon components. It was found that an integrated approach to the preparation of raw materials and the separation of reduction processes with the successive use of two types of reducing agents – magnesium and calcium, made it possible to create an effective process for producing titanium without the use of carbon reducing agents. The influence of calcium and magnesium chlorides as promoters of the reduction process was revealed. Experimental studies have established that the shape and density of raw materials significantly affect the efficiency of the reduction process by streamlining the reducing agent flows and reaction products in the furnace charge. The established regularities made it possible to improve the process of reduction of titanium oxide to obtain samples of titanium powders with an oxygen content of 0.17 %, which corresponds to international standards for titanium alloys and powders. Additional plasma treatment made it possible to obtain materials that were suitable for additive processes in all respects. A systematic approach to the utilization of reaction products made it possible to devise a technological scheme in which all possible waste is either returned to the technological process after treatment or processed into marketable products. Based on the results of the study, a technological scheme for obtaining powders of titanium alloys from titanium oxide by complex reduction in two stages – magnesium and calcium – was developed. The proposed scheme involves standard metallurgical processes and is brought to standard processes and equipment of metallurgical enterprises and chemical industry. In terms of practical significance, the results of this work could be used in the development of industrial technology to produce titanium from titanium dioxide without the use of carbon components.

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Section: Determining Quality Indicators Of the Resulting Product Acco...mentioning

confidence: 99%

Development of a technology to produce titanium powder with a low carbon footprint

Gonchar¹,

Troshchylo²,

Brodskyy³

et al. 2023

EEJET

View full text Add to dashboard Cite

show abstract

“…The physicochemical possessions as well as chemical composition of the surrounding environment perform very significant roles in cellmaterial interactions. In the body, the extracellular matrix is the main surrounding environment of cells [20]. When a nanomaterial with a nanostructured surface introduces into the body, its special features may influence proteins and also affect cell adhesion, proliferation, differentiation and phenotype.…”

Section: The Active Surface Of Nano-materialsmentioning

confidence: 99%

The Application of Nanomaterials in Cardiovascular Diseases: A Review on Drugs and Devices

Dizaj

Rad²,

Safaei³

et al. 2019

J Pharm Pharm Sci

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Cardiovascular diseases (CVDs) are still one of the main causes of death. In recent years, nanotechnology has offered new materials and strategies for more effective and safe treatment as well as diagnosis of CVDs. This review highlights the recent advances in nanotechnology applications in CVD therapy. The manipulation and the production of biomedical implantable devices based on nanomedicine approaches as well as drug delivery concepts for diagnosing and treatment of CVDs are discussed in this paper.

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“…In the case of physical methods, the formation of the surface layer on titanium alloys is mainly attributed to the thermal, kinetic, and electrical energy. These techniques comprise thermal spraying, physical vapor deposition (PVD), glow discharge plasma, and ion implantation [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Modification of TiAlV Alloys with Hybrid Layers Containing Metallic Nanoparticles Obtained by the Sol–Gel Method: Surface and Structural Properties

Ziąbka

Matysiak

Walczak

et al. 2022

IJMS

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The aim of the work was to obtain hybrid coatings containing silver, copper, and zinc nanoparticles on the TiAlV medical alloy via a sol–gel process. The developed layers were designed to bring about a bactericidal and fungicidal effect, as well as for protection against surgical scratches during the implantation of implants used in veterinary medicine. In this work, the authors focused on evaluating the microstructure (SEM + EDS); the structure (XRD, FTIR); and the surface properties, such as wettability, free surface energy, and roughness of layers with various concentrations of metallic nanoparticles (2 and 5 mol %). Our results confirmed that the sol–gel method enables the easy manufacturing of hybrid layers endowed with different porosity values as well as various shapes and sizes of metallic nanoparticles. A higher concentration of nanoparticles was observed on the surface containing 5 mol % of metallic salts. The highest degree of homogeneity was obtained for the layers containing silver nanoparticles. In addition, the silver nanoparticles were round and had the smallest dimensions, even below 20 nm. The FTIR and XRD structural studies confirmed the presence of an organosilicon matrix containing all three types of the metallic particles. We conclude that the higher concentration of nanoparticles influenced the alloy surface parameters.

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Advanced Surface Treatments on Titanium and Titanium Alloys Focused on Electrochemical and Physical Technologies for Biomedical Applications

Cited by 14 publications

References 150 publications

Development of a technology to produce titanium powder with a low carbon footprint

Development of a technology to produce titanium powder with a low carbon footprint

The Application of Nanomaterials in Cardiovascular Diseases: A Review on Drugs and Devices

Modification of TiAlV Alloys with Hybrid Layers Containing Metallic Nanoparticles Obtained by the Sol–Gel Method: Surface and Structural Properties

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