Titanium metal fiber is a new field in the development of material science. Particularly in the areas of aircraft, petrochemical, national security, and health, researchers have focused more and more in recent years on the creation and use of metal fiber.
A fibrous substance made from metal wire that has a specific length-to-diameter ratio is known as metal fiber. It can also broaden its range of applications by fiberization, under the assumption that it inherits the qualities inherent in the metal substance itself.
Titanium fiber has a series of advantages such as high temperature resistance, low temperature resistance, corrosion resistance, light weight, and good ability to absorb impact energy. As a result, titanium fiber and titanium fiber porous materials have a wider range of applications and can withstand hostile environments.
1. Sound-absorbing material
When the sound wave enters the material with loose and porous structure, on the one hand, it will generate viscous resistance due to the friction of air molecules, and on the other hand, it will convert the sound energy into heat energy through heat conduction, so as to achieve the purpose of sound absorption. Fiber material is an extremely widely used sound-absorbing material. This is due to the following reasons: on the one hand, it contains an interior hole with a through opening that can enhance the friction between sound waves and air molecules to raise viscous resistance;
In addition to the basic properties of fiber sound-absorbing materials, metal fiber has high strength, good thermal conductivity, corrosion resistance, high temperature resistance, and it also has the distinctive electromagnetic shielding capabilities of metal materials, allowing it to be employed for high temperature and high pressure applications. It is utilized as an acoustic lining material for high-pressure aeroengines, as an underwater low-frequency sound-absorbing material, and so on.
2. Reinforcement material
A single engineering material's performance development can no longer keep up with the continuously expanding performance requirements due to advances in science and technology. As a result, composite materials in a certain ratio and manner have currently become a significant area of research.
Due to its high specific modulus, high specific strength, high temperature strength, high temperature oxidation resistance, high temperature creep resistance, light weight and other advantages. Although titanium aluminum alloy has become one of the best materials for the next generation of aero-engine components, it is prone to cracking and has a low strength. The problem of room temperature plasticity severely limits the use of titanium-aluminum alloy. The introduction of titanium fiber into titanium-aluminum alloy can prevent the propagation and expansion of cracks in the titanium-aluminum alloy matrix, and can further improve the specific strength and specific modulus of the matrix alloy, and can coordinate intragranular and intergranular by absorbing deformation. Deformation and toughening of the base alloy.
Titanium and titanium alloys are very suitable biomedical materials due to the following advantages: (1) light weight, density (20°C) = 4.5g/cm3, and reduce the burden on the human body after implantation. (2) Compared with other implant materials, it has a lower elastic modulus closer to human bone, which can reduce the stress shielding of human bone to foreign implants. (3) Non-magnetic, not affected by external electromagnetic fields, etc. (4) Non-toxic. (5) As an inert metal material, it has good biocompatibility with human bone, cell tissue, and blood, and has no allergic reaction and no human pollution. (6) Good mechanical compatibility.
In addition to the aforementioned uses, titanium fiber porous materials also have other unique uses, such as the preparation of high-efficiency heat exchangers for high-efficiency combustion, filtration analysis, electromagnetic shielding, and other fields by utilizing the titanium fibers' heat transfer properties.
To sum up, titanium fiber materials have a wide range of applications due to the inherent advantages of titanium metal itself and the characteristics of fiber materials, making it possible to be used in some special and harsh conditions, and will have great potential in the future. Great research and development potential and value.
