As the precursor of MXene material, MAX phase material has a wide range of application scenarios: MAX phase is a new type of ternary layered compound composed of three elements: M, A and X, and its general chemical formula is MN+1AXN , (Where M: pre-transition metal, A: group A element, X: carbon or nitrogen, N=1, 2, 3...). |
Traditional ceramics are limited by shortcomings such as high brittleness, fragility, low impact resistance, and difficulty in processing, and are difficult to be widely used. The new Ti3AlC2 ceramics just make up for this gap. It combines the properties of ceramics and metals: existing metals Good electrical conductivity, high thermal conductivity, workability, thermal shock resistance, high temperature plasticity, and high temperature strength. It also has good corrosion resistance, high modulus, low friction coefficient and self-lubricating properties of ceramic materials. In addition, Ti3AlC2 also has a lower density, which meets the development requirements of the lightweight era. In view of the many excellent properties of MAX phase, it can be widely used in the following material fields; |
(1) Corrosion-resistant materials. Corrosion is one of the main culprits of material loss and scrap. Corrosion failure caused by corrosion has brought great economic losses to people and may even endanger people's lives. As a new era of corrosion-resistant material, MAX phase has high surface hardness after carbonization and ingenuity. In theory, it can form an excellent corrosion protection layer with excellent corrosion resistance. Moreover, this surface treatment process is relatively inexpensive and easy to operate. In addition, the density of MAX phase materials is much lower than that of the most widely used steel materials, and they can withstand a certain impact. Therefore, when partially replacing steel components, it can not only achieve the needs of the times, but also meet the traditional needs of anti-corrosion. , Especially in the marine industry and ship transportation with harsh corrosive environment, it has more potential, such as replacing some filters and seals that require anti-corrosion treatment. |
(2) High temperature structural materials. At present, the better high-temperature structural material nickel alloy has only half the hardness of the MAX phase material. When the temperature exceeds 1200℃, Ti3AlC2 can still maintain good strength, while the Ni-based alloy begins to fail and transform, which shows the high temperature stability of the MAX phase. Stronger than Ni-based alloys. In addition, the excellent processing performance of MAX phase can fully meet the requirements of high-temperature structural materials. It is an ideal candidate material for preparing high-temperature components such as guide vanes, turbine blades, high-pressure compressor discs, turbine discs and combustion chambers of gas engines. |
(3) Low friction coefficient materials and electrical contact materials. The large-size, highly oriented MAX phase crystal, coupled with its self-lubricating properties, makes the MAX phase a great potential for the development of materials with extremely low friction coefficients. Electrical contact materials need to have good thermal and electrical conductivity, high strength, high temperature stability, excellent self-lubricity and low friction coefficient due to their current transmission and conversion functions. The MAX phase material just meets these critical requirements. |
(4) Material of rotating parts. The MAX phase's machinability, dimensional stability, low density and high rigidity are the bargaining chips for its selection of candidate materials for rotating parts. This has great application potential in the field of disk drive equipment that requires high space stability during rotation. |
(5) Heat exchange materials. Excellent thermal conductivity is one of the characteristics of MAX phase. Its good thermal conductivity can continue to be maintained at high temperatures. Combining its other characteristics, such as easy machining, stable chemical properties, especially excellent thermal shock resistance, makes MAX Phase materials have become one of the candidates for a new generation of heat exchange materials. |