Uses of Titanium Nitride Ceramic Materials in Biomedicine

What is titanium Nitride?

Titanium-nitride is a non-stoichiometric compound. It has a stable composition range of TiN0.37-TiN1.16, and the nitrogen content can be changed within a specific range without causing changes in the structure. TiN, a nonstoichiometric material, has a range of stable compositions between TiN0.37 and TiN1.16, with the nitrogen content being able to be adjusted within that range. The TiN Powder is usually yellow-brown. The ultrafine TiN Powder is black. TiN Crystals are golden yellow. TiN has melting points of 2950degC and a density between 5.43-5.44g/cm3. It also has a Mohs Hardness of 8-9 as well as high thermal shock resistance. TiN’s melting points are higher than those of most transition-metal nitrides. The density of TiN is lower than the majority metal nitrides. This makes it a material that is very heat resistant. The TiN crystallization is similar to TiC’s, but the C atoms have been replaced by N atoms.

Titanium Nitride as a Biomedical Material

Clinical medicine has widely used the occluder for the treatment of congenital diseases, such as the atrial septal defect, ventricular septal defect and patent arteriosus. Most common concentrics occluders contain nickel up to a maximum of 55% in nickel-titanium metal alloys. The body can become poisoned and allergic to nickel, which in turn may cause cancer. The surface membrane of the occluder Nickel-Titanium alloy may be destroyed. In addition, the release of nickel ions from the human body’s complex environment can increase the nickel content.

According to relevant studies, because titanium nitride is a biocompatible material (and was previously used in coronary-stents), thrombus formation is lower than with nickel-titanium. To address this problem, scientists developed a Cera Ceramic Membrane Occluder, using high-energy coating technology. It maintains both the original interventricular and atrial septal septal occluders based on the original Nickel-Titanium Alloy occluder. The occluder design and patent ductus archeteriosus occluder use plasma technology to evenly apply a titanium nitride (TiN) film onto the surface of nickel-titanium alloy powder. Using ion technologies, the metal Titanium coating and C N O and other compound are transformed into The biological Layer dramatically improves corrosion resistance and compatibility with biological tissue and blood. The comparison of the data from animal experiments shows that the Cera membrane occluder has a much higher performance in terms cell creeping growth compared to the normal nickel-titanium. It significantly reduces thrombosis risk and helps repair congenital heart defects. Platelet adhesion rates and hemolysis are also lower compared to the nickel-titanium standard occluder. Cera’s occluder was approved by other countries, including the European Union, India and Brazil. The Cera occluder has been used by more than thousands patients with congenital hearts disease.


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The Properties And Application of Titanium nitride

Titanium Nitride (TiN), a non-stoichiometric compound, has a structure similar to NaCl. It is a cubic face centered lattice, with lattice constants a=0.4241nm. In this structure, titanium atoms can be found at the corners tops of a face centered cubic. TiN has a nonstoichiometric composition, which is TiN0.37 – TiN1.16. Changes in nitrogen content are possible within a specified range without altering the structure of TiN. TiN powders are usually yellowish-brown, ultrafine powders are black and TiN crystalline forms are golden yellow. TiN has an excellent thermal shock resistance, a melting temp of 2950degC and a density of 5-4.44g/cm3. TiN has a much higher melting temperature than most of the transition metals, but it also has a lower density. This makes TiN a heat-resistant metal. The TiN crystalline structure is very similar to TiC. However, the C atoms are replaced with N atoms.
Nature Introduction

TiN is an extremely stable compound. It will not reacted with metals, such as iron and chromium at high temperature. Also, TiN crucibles won’t react with acidic Slag in CO and N2 atmospheres. It can be used with alkaline or acidic slag. TiN, when heated under vacuum, loses nitrogen and becomes titanium nitride that has a lower nitrogen content.

TiN has a beautiful golden color. It also has a very high melting temperature, possesses exemplary chemical stability, and is not wettable to metals. It is a superconductor with high electrical conductivity. It is also superconducting material.

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Titanium nitride is a refractory compound with high microhardness and chemical and thermal stability

What is titanium Nitride? Titanium Nitride is a refractory with a high microhardness, chemical stability and thermal stability. TiN can be used for many purposes: as part of refractory material and cermets. It is also used as the crucible in metal anoxic casts and as precursor to wear-resistant decorative coatings. In a study of the combustion of compacted samples of titanium powder in nitrogen, it was found that the nitrogen content in the titanium powder is the most important factor in the combustion. Titanium sponges are a cheaper, more convenient and purer source of titanium compared to titanium powder.
What are the uses of titanium nitride?
Titanium nitride, a bright-gold ceramic coating, is applied by PVD to metal surfaces. The coating has a high degree of hardness, has low friction, and is moderately resistant against oxidation. The coating is smooth and does require any post-painting.
TiN is commonly used on machine tools to improve their corrosion resistance and maintain the edges.

TiN, which is a golden metal, can be used for decorating costume jewelry or car accessories. It is also used widely as a top-coat on consumer sanitary items and door hardware. The substrates are usually nickel (Ni), or chrome (Cr). As a protective coating, TiN can be used in aerospace and military applications, to protect sliding surfaces such as the forks at the front of motorcycles and bicycles, or the shafts that absorb shocks for radio-controlled vehicles. As TiN is extremely durable, it is used as a coating for the moving components of semi-automatic and automatic firearms. The coating is very smooth and removes carbon deposits easily. TiN, which is FDA compliant and non-toxic has been used on medical equipment, such as orthopedic bone saws, scalpels, and other blades, to maintain sharpness and edge. TiN coatings were also used to coat implanted medical implants, such as hip replacement implants.

TiN film, although not as visible, is also used for microelectronics as a conductive contact between active devices, such as circuits and metal contacts, as well as as a barrier to diffusion, to stop metal from diffusing to the metal. silicon. Although TiN is a ceramic material from a mechanical or chemical point of view in this case, it is classified a “barrier-metal” (resistivity less than 25 uO*cm). TiN can also be used in the latest chip designs (45 nm or higher) to improve transistor performances. When combined with a gate-dielectric that has a higher dielectric coefficient than standard SiO2 such as HfSiO, the gate length is reduced while maintaining low leakage. Currently, a TiN coating is being considered for zirconium-alloys that resist accidental nuclear fuel.

TiN electrodes can be used for bioelectronic devices, including smart implants, in-vivo biosensors and other bioelectronic devices, due to their high biological stability. They must also withstand the severe corrosion that occurs from body fluids. TiN electrodes have been used in subretinal prosthesis projects and biomedical microelectromechanical systems (BioMEMS).

What’s better, titanium or Titanium Nitride?
Titan alloy drill bits can be a good choice for softer materials, such as wood and plastic. While the type of coating for titanium is different. As an example, titanium carbonitride coats are able to treat harder materials. Titanium, an element and metal, is composed of nitrogen and titanium.

Is titanium Nitride toxic?
Titanium Nitride, also called Tinite, is a very tough ceramic material that’s used to improve surface properties on titanium alloys and steel components.
TiN is a thin coating used for hardening and protecting cutting and sliding surface, as well as for decorative purposes due to its golden color. It can also be used for medical implant exteriors as it’s non-toxic. In many applications, the thickness of the applied coating is less that 5 microns. The study concluded the material tested was not toxic, nonirritating and nonhemolytic.

What is the strength level of titanium nitride?
feature. The Vickers hardness is 1800-2100. The elastic modulus of TiN, is 251GPa. The tiN oxidizes at 800degC. Normal atmosphere.

Other advanced uses of titanium nitride

1. Indium oxide photocatalysis is enhanced by plasma Titanium Nitride .
Photothermal titanium nitride (TiN) is a nano-scale metal material capable of capturing sunlight across a broad spectrum and generating a higher temperature locally through its photothermal effects. Indium oxide-hydroxide nano-scale material, In2O3x(OH)y, is a semiconductor capable of photocatalytic hydrogenation of gaseous CO2. The wide electron gap of In2O3-x(OH)y limits its ability to absorb photons in the ultraviolet range of the solar spectrum. In this article, two nanomaterials are combined in a ternary heterstructure: TiN at TiO2 and In2O3 -x(OH). This heterogeneous structural material couples metal In2O3x(OH)y and semiconductor TiN via the interface semiconductor, TiO2, to produce a conversion rate that is greater than the single component or binary combination.

2. Li-S battery polysulfide adjustments can be made by dissolving the vanadium within the titanium nitride framework.
The ability to adapt the host-guest chemistry in lithium-sulfur (LiS) batteries is of high importance, but has yet to be effectively implemented. Here, a unique titanium-vanadium-vanadium nitride (TVN) solid solution fabric was developed as an ideal platform for fine structure adjustment to achieve efficient and long-lasting sulfur electrochemistry. It is shown that by dissolving vanadium in the TiN structure, it can be used to adjust the electronic and coordination structure of Ti and Vanadium. This will change their chemical affinity toward sulfur species. This optimized TiV interaction provides the highest total polysulfide capacity and helps to fix sulfur firmly and accelerate reaction kinetics. The final LiS battery has excellent cycling capability. Its capacity retention rate after 400 cycles is as high at 97.7%. The reversible surface capacity can also be maintained under high sulfur loads of 6.0 mcg cm-2, and an electrolyte with a concentration of only 6.5 mL/g-1. This study provides a novel perspective for future adjustments of high-quality Li-lithium batteries.
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Titanium nitride Characteristics and Application

What is Titanium nitride (TiN)? Titanium Nitride (TiN) is a very hard ceramic, sometimes called Tinite, that’s used as a surface coating for titanium alloys, steels, carbides, and aluminum to improve their surface properties.
The thin coating of TiN, due to its golden color, is used as a protective and hardening layer for cutting and sliding surfaces. In addition, it can also be used as an exterior surface for medical implants that are non-toxic. In the majority of applications, a thin coating less than 5 millimeters is applied.

Characteristics of titanium Nitride
Titanium Nitride possesses a Vickers Hardness of 1800-2100. It also has a Modulus of Elasticity of 251 GPa. A thermal expansion coefficient is 9.35×10-6 K-1 and a transition temperature to superconductivity of 5.6 K.
Titanium Nitride is oxidized at 800 degC when in a normal environment. Titanium Nitride appears golden when applied to a surface. It has a brownish color. Laboratory tests show that it is chemically inert at 20 degC. However, with increasing temperatures, concentrated acid solutions can slowly attack the material. Titanium Nitride has a coefficient friction of 0.4-0.9, depending on its surface finish and substrate. The typical TiN structure is NaCl type with a 1:1 stoichiometry. However, TiNx with x between 0.6 and 1.2 is thermodynamically stabile.
TiN superconducts at cryogenic temperature, with critical temperatures as high as 6.0 K in single crystals. Superconductivity in thin-film TiN has been studied extensively, with the superconducting properties strongly varying depending on sample preparation, up to complete suppression of superconductivity at a superconductor-insulator transition. After a thin layer of TiN had been chilled to almost absolute zero, it was transformed into the world’s first superinsulator. Its resistance increased by a factor 100,000.

Titanium Nitride Applications
TiN coated drill bit
Gerber pocketknife coated with dark gray TiCN
It is well known that TiN The coating improves the lifetime of machine tooling such as milling and drill bits by up to three times.
TiN is widely used for decorating automotive trim and costume jewelry because of the metallic gold colour. TiN can also be used on door and plumbing hardware as a decorative top-layer, often with nickel or chromium plated surfaces. It’s used in military and aerospace applications to protect sliding surfaces such as suspension forks on bicycles and motorbikes and shock shafts in radio-controlled cars. As it is so durable, TiN can also be used as a coating for the moving parts on many rifles and semiautomatic weapons. The coating is not only extremely durable but also very smooth. This makes removing carbon build-up a breeze. TiN, which is non-toxic and meets FDA guidelines has been used to coat medical devices, such as orthopedic bone saw blades and scalpel knives, when edge retention and sharpness were important. The TiN coatings were also used to coat implanted medical implants (especially hip implants) and prostheses.
Although thin films are not as visible, they still have a similar effect. TiN In microelectronics they are used as diffusion barriers to stop the diffusion of metal into silicon. TiN is classified in this context as a “barrier metal” (electrical conductivity 25 uO*cm), despite the fact that it is a clear ceramic when viewed from a chemistry and mechanical perspective. Recently, chip design for 45 nm and beyond has also used TiN to improve transistor performance. Combining gate insulators (e.g. HfSiO has a greater permittivity than SiO2 and can therefore be used to reduce gate lengths with better threshold voltage, lower leakage, and higher drive current. TiN thin films may also be used to coat zirconium-alloys for accident resistant nuclear fuels.
TiN layers can be used for electrodes as well in bioelectronics applications, such as in intelligent implants and in-vivo sensors that must resist the corrosion caused by bodily fluids. TiN electrodes have already been applied in the subretinal prosthesis project as well as in biomedical microelectromechanical systems (BioMEMS).

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What is Titanium Nitride?

What is it? Titanium Nitride ? Titanium Nitride is a compound that has a molecular structure of TiN and a mass of 61.88. TiN powder can be found in yellow-brown colors, but the ultra-fine TiN is black and the TiN crystals are golden yellow. TiN’s melting point is 2950. The Mohs hardness 8-9 is excellent, and it is resistant to thermal shock. TiN has both a higher melting point and lower density than many transition metal nitrides. It can be used in conductive materials, such as electrodes or electrical contacts for molten Salt Electrolysis.
These are the main features of Titanium Nitride
There are two types of titanium dioxide (Ti2N2), and one type of titanium tetranitride. Titanium dinitride, a yellow solid, is also known as titanium nitride. In boiling water, dissolve. Hot sodium hydroxide solution will release ammonia. The properties of titanium Tetranitride are very similar to that of titanium dioxide.
It is possible to make it directly by reacting titanium with nitrogen at 1200°C. It can be made by using a vapor-deposition process of titanium tetrachloride (nitrogen) and hydrogen mixed gases. Titanium dinitride results from heating titanium metal in nitrogen, ammonia, at 900 to 1000°C. Titanium tetranitride results from heating titanium tetrachloride with ammonia at 1000°C.
Titanium Nickel Nitride Properties
Other Titles Tinite, TiNite, TiN powder, nitridotitanium
No. 25583-20-4
Combination Formula TiN
Molecular Weight 61.87
Appearance Brown Powder
Melting Point N/A
Boiling Point N/A
Density 5.24 g/cm3
Solubility of H2O N/A
Exact 61.951
Titanium Nitride Nitride TiN powder CAS 25583-20-4
Titanium Nitride and its applications
1. For metal edges, titanium nitride is widely used to protect against corrosion of tools like drills and milling cutters. It can also be used to prolong the life of these machines by up to three times.
2. Because of its metallic luster it is used often as an ornament for clothes and automobiles. As an outer coating nickel (Ni), chromium(Cr) are often used to plat the substrate for packaging pipes, door and window hardware.
3. It is used in aerospace, military, and to protect the surfaces of bikes and motorcycles as well as the shock-absorbing shafts on remote-controlled toys cars.
4. The FDA approved material is non-toxic. It can also be used in medical devices. For example, it can maintain the sharp edges of scalpel blades.
5. As a conductive barrier between metal contacts and active devices, titanium nitride film can be used in microelectronics. It is possible to make a good conductive connection by diffusing the film onto metal silicon.
6. This “barrier” metal also has the mechanical and chemical properties of ceramics. It is widely used in current 45nm chips designs to improve transistor performance. By combining titanium Nitride with a gate Dielectric Layer (eg, HfSiO), a battery field that uses this combination can achieve a higher dielectric constant, greater leakage, a shorter gate length, and thereby achieving optimum threshold voltage. 7. The high biological stability extends the application field of this alloy to bioelectronic electrodes, such as subretinal prosthesis projects and microelectromechanical systems (biological microelectromechanical systems) in biomedicine, making smart implants or in vivo biosensors Able to withstand severe body fluid corrosion.
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