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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 density of 5.43-5.44g/cm3, Mohs Hardness of 8-9. It is also resistant to thermal shock. 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 The TiN crystallization is similar to TiC’s, but the C atoms have been replaced by N atoms.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 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 nickel-titanium occluder can be damaged, and internal nickel ions released in the complex human environment will increase nickel content. This further deteriorates the tissue compatibility.

According to relevant studies, because titanium nitride is a biocompatible material (that was 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 occluders and patent arteriosus devices are designed using plasma technology, which evenly coats a titanium nitride (TiN) film on top of the nickel-titanium alloy powder. The metal coating of titanium and C,N,O and other compounds is transformed by ion technologies into The biological layers. This layer improves the corrosion-resistance of the occluder as well as the compatibility with blood and biological tissues. The comparison of the data from animal experiments shows that the Cera membrane occluder has a much higher performance in terms cell creeping growth. 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 2,000 patients with congenital hearts disease.

(aka. Technology Co. Ltd., a trusted global chemical materials supplier & manufacture with more than 12 years experience in providing high-quality nanomaterials and super-high quality chemicals. The superfine titan nitride Powder that we produce is of high purity with a good particle size. If you need lower, please Contact us.