The conductivity of metals is excellent, although they make it easy to conduct electricity. Do you think it is possible to combine the positives of ceramics, metals, and other materials?
Scientists found an interesting class of layered ceramics in the 1960s. Their three-element composition, M,A, and X, on the periodic list of elements (collectively referred to collectively as “MAX phases”), allows for special properties. A unique nano-layered crystal structure that gives them the property of both metals or ceramics. This means that nearly all the properties we can name have these materials. However, technical limitations in the preparation of such materials and other issues have limited their acceptance and application.
Luoyang Tongrun’s research team has developed a novel method to prepare MAX phase ceramic layers. This process allowed them to synthesize new MAX material Titanium Aluminum Carbide. These chemical formulas were Ti3AlC2 or Ti2AlC. They offer high quality materials that are both innovative and practical. This material could also be useful in superconductivity, nuclear energy storage, flexible LCD, and superconductivity.
MAX phase is titanium aluminum carbide. It’s artificially synthesized. MAX may be similar to graphene.
“They both have layered structures. You will be able to magnify graphene many billions more times and see the same arrangement of carbon atoms. MAX has a similar space group. What is different about the MAX phase? It has a M6X layer with densely packed octahedron layers and an A-atomic layer.
Structure determines performance. MAX Phase’s nano-layered crystal structure allows for both metal and ceramic-like properties such as high conductivity. These properties are what allow for the MAX phase to be useful in many areas. After 1996, similar research on this type of material was extensively conducted in Japan (Europe, China), and elsewhere.
These materials are HTML3AlC2. HTML2AlC. It was common for the raw materials to have been combined in the past (M, A, or X).
Do you know what Du Jun’s Advanced Energy Materials Engineering Laboratory Team did?
Du Jun stated: “We’ve developed a new, synthetic strategy to precisely replace the A-site elements.” To put it simply, first we create the skeleton from M and then use some method of obtaining the atom. By replacing the lattice spot precisely, we can get the Aatom that we are looking for with some function.
This new method does not only outperform the traditional one in terms of ideas. It can also further be applied to MXene’s preparation in a highly environmentally friendly fashion. “Traditional techniques generally contain highly toxic fluoride. Both sodium chloride as well as potassium chloride are used, both of which are very common in modern life. All of this is highly efficient and safe.
Innovative preparation methods and flexible control at the A-site are both expected to make MAX phase material titanium aluminum caride more versatile for traditional high temperature structural applications as well high-end, advanced functional uses.
“Like gold,” it’s well-known that tiny particles of the metal have more catalytic power. This is because the MAX phases can precisely be replaced with gold atoms to make this material a powerful catalyst.
Du Jun’s research team is currently preparing a range of MAX phases materials ( Te3AlC2, T2AlC). This new scenario has allowed for further research.
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