Nitinol powder is a type of material called shape memory alloy. The specific surface area (m2/g) of the nickel-titanium alloy powder is 12.3, its bulk density (g/cm3) is 0.15, and the powder color is black. Nitinol powder from the plasma rotating electrode process can provide cleaning for the biomedical equipment used. In addition, Nitinol powder has good shape memory properties. After the deformation at a specific temperature reacts, it can return to its previous shape.
Nitinol powder also has some other special properties, including anti-wear, super elasticity, high damping, corrosion resistance, and no effect on radiopacity. Plasma Rotating Electrode Process (PREP) is one of the methods for manufacturing nickel-titanium alloy powder. The nickel-titanium alloy powder is spherical and has no obvious chemical composition changes.
Nickel titanium shape memory alloy, as a new type of functional material integrating sensing and driving, is one of the important components of intelligent material structure. It has important theoretical and applied research value. Nickel-titanium shape memory alloy is a functional material with high strength, corrosion resistance, good biocompatibility, non-toxicity, and excellent medical application prospects. After the low temperature phase is deformed, the temperature memorized by the parent phase can be restored by a slight temperature of 20~300℃. The expansion rate of the nickel-titanium shape memory alloy is more than 20%, the fatigue life is up to ten times, and the damping characteristic is better than other ordinary The spring is ten times taller and has properties unimaginable by ordinary metals. Therefore, it can be widely used in many medical fields such as stomatology and orthopedics. In recent years, nickel-titanium shape memory alloys have played a very important and irreplaceable role in the treatment of various types of fractures.
Biocompatibility is an important factor in whether shape memory alloys can be used in the human body. Materials with good biocompatibility will not cause allergic reactions in the living body, nor will they release any ions into the blood of the living body. Based on this characteristic, Tanmen can exist for a long time in the living body without any occurrence. Harmful reaction. Biocompatibility and material surface characteristics are closely related to organism inflammation and allergic reactions.
Although nickel is a trace element necessary for life, it is highly toxic. Studies have confirmed that long-term exposure to nickel can cause diseases such as anemia, chronic rhinitis, nasopharyngeal cancer and pneumonia. Titanium and its compounds have good biocompatibility and mechanical properties, so they are often used in dental and orthopedic internal plants. The oxidation reaction of titanium can produce a layer of non-toxic TiO2 surrounding the material. This oxide layer can effectively resist its erosion of the titanium alloy, and is harmless to the human body. Erosion analysis experiments have confirmed that nickel-titanium alloys are prone to erosion changes in physiological saline, but their corrosion resistance is higher than that of stainless steel. In general, NiTi shape memory alloys have good biocompatibility.
Luoyang Trunnano Tech Co., Ltd (TRUNNANO) is a professional nitinal powder manufacturer with over 12 years experience in chemical products research and development. If you are looking for high quality nitinal powder , please feel free to contact us and send an inquiry.
