The following is the latest news of Nitinol:

Research breakthrough of adaptive 3D printing of Nitinol antenna

On December 25, 2024, researchers at the Johns Hopkins Applied Physics Laboratory (APL) are using advanced 3D printing technology with shape memory alloys to develop antennas that can independently deform in response to temperature changes. The research team, led by Jennifer Hollenbeck, has successfully created the first antenna that can change from a flat spiral shape to a conical shape when heated. The antenna is made of Nitinol, which has the property of returning to its original shape after heating to a specific temperature. Although 3D printing Nitinol faces a series of challenges, such as material deformation due to thermal reaction during the printing of complex structures, the research team overcame these difficulties through a series of experiments and optimization, and adopted a new conductive material. Ensure that antenna performance does not suffer when the desired temperature is reached. This flexible antenna opens up new possibilities for military operations, as it can achieve dynamic communication in the field, can also cover a variety of mobile networks in the telecommunications and industrial fields, and in particular can better adapt to switching between short and long distance communications, and has potential applications in the field of space exploration.

Nitinol inventory status

According to Shanghai Nonferrous metal network news, the current domestic nickel titanium alloy inventory is large, mainly concentrated in Jiangsu, Shandong and other major production areas, of which Jiangsu is the most concentrated inventory. The overseas Nitinol inventory is relatively small, mainly concentrated in Europe and the United States manufacturers and international trade centers. In China, the inventory of Nitinol mainly comes from the production warehouse of the production enterprise and the inventory of the dealer, the current total domestic Nitinol inventory is about several thousand tons, with the growth of market demand, the inventory is also gradually increasing.

Effect of energy density on mechanical properties of Ni-Ti-Cu shape memory alloys prepared by SLM

The paper "Effect of energy density on Mechanical properties of Ni-Ti-Cu shape memory alloy prepared by slm" co-authored by Guangzhou Ruitong Additive Technology Co., LTD., School of Optoelectronic Science and Engineering, South China Normal University, and School of Physics and Optoelectronic Engineering, Jinan University was published in sci journal materials, Vol. 17, No. 23. The density, composition, microstructure and mechanical properties of Ni-Ti-Cu alloy were studied by laser powder bed melting. The feasibility of the preparation of Ni-Ti-Cu alloy by laser selective melting technology was confirmed, and the foundation was laid for the efficient production of Ni-Ti-Cu term-based shape memory alloy by this method.

Study on biocompatibility of nano-Ni Ti alloy and tantalum coating composite layer

According to the news of the Small wood worm Forum, the biocompatibility of nano-nitinol and its composite materials has been deeply discussed. Studies have shown that the tantalum coating is excellent at reducing the production of reactive oxygen species (ROS), with the tantalum layer reducing the hydrogen peroxide concentration by about 60% and the titanium layer by about 40% compared to uncoated Nitinol. In cell survival and proliferation experiments, neither the original Nitinol nor the composite material treated with tantalum or titanium coating showed acute toxicity to cell growth. Tantalum coating could not only promote cell survival, but also significantly enhance cell proliferation. The research provides theoretical basis and technical support for developing a new generation of high-performance biomedical materials.

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