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Recently, the Kim Kyung-Tai Ph.D. research team, which is the headquarters of the Korean Institute of Materials Research, has succeeded in developing a very fine aluminum powder surface treatment technology in South Korea. Compared with the existing aluminum powder materials, the reactivity with oxygen is improved 2 times more, but also to ensure the stability of the operation.
This technology removes the dense oxide film present on the surface of aluminum powder coated with a thermodynamically stable fluorinated organic material that can be easily removed as a solid at a lower temperature than the naturally occurring oxide film Fuel, aluminum powder can have higher oxidation reactivity under high-energy conditions. In addition, the organic coating can prevent the aluminum powder from directly contacting with the external oxygen. Compared with aluminum, the aluminum powder can be more easily safed under normal temperature and normal pressure store.Brass Precision Custom Cnc Turning Part Manufacturer
Pure aluminum and oxygen combined, compared with other materials, oxidation reaction speed block, the heat is also very high. The United States, Russia and other countries rely on the intense oxidation reaction of aluminum powder, which is widely used in aviation, civil and defense industry as rocket propellant, gunpowder and welding material. Only when the surface is dense and solid oxide film is completely removed, the excellent oxidation reactivity and conductivity of aluminum powder and other properties to fully play out, which requires at least 1000 ℃ heat. Moreover, during the process of removing the oxide film, pure aluminum is directly exposed to the atmosphere and is also highly likely to explode, all of these posing a headache for other aluminum powder researchers.
In order to solve these problems, the research team at the Materials Research Institute tried to easily remove the oxide film formed on the surface and used fluorine-containing organic substances to improve the stability and reactivity of the aluminum powder itself. The coated aluminum powder can remove the organic coating at a temperature below 250 ° C., and the reaction speed can be increased by at least 2 times compared with the aluminum powder of the same size containing the oxide film. It is worth mentioning that by using the present Painting technology, easy to build related equipment, to achieve mass production.Aluminum Cnc Machining Parts Manufacturer
In the future, this technology will help improve the oxidative reactivity of aluminum powder, which can be used as solid fuel material and brazing raw material for rocket launch by artificial satellites. Combined with organic bonding and mixing technology, it can be used as a wide variety of electronic components and highly conductive metal solder materials, including photovoltaic cells, which is expected to enhance the added value of aluminum powder to replace imported powder material.
Kim Jong-tai, head of the research team, said that if the technology is commercially available, aluminum powder can create tremendous value in the defense and electronic parts industries and will play a huge role in the development of Korean materials and technology.
On the other hand, this study was supported by the "Multiscale Energetics research team", the Meta Materials Research Center and the Materials Research Institute of the Korea Military Research Foundation's technology cooperation and basic technology development business unit. Aluminium Cnc Turning Accessories Manufacturer