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A New Material With Both Metal And Ceramic Properties-MAX Phase Layered Ceramic Material

wallpapers Industry 2020-06-02

Metal is easy to conduct electricity, but it is not resistant to high temperature, corrosion, and ceramics, but it is not as good as metal. Is it possible to concentrate on the advantages of metals and ceramics on one material? It is reported that Tongrun has innovated the preparation method of MAX phase layered ceramic materials, and synthesized a series of high-quality MAX phase materials with high quality. This material has the performance of both metals and ceramics, which opens up a new situation of research and application in this field. It has excellent application prospects in nuclear energy storage, flexible display, superconductivity and other areas.

In the 1960s, scientists found a class of layered ceramic materials with unique functions. Because they are composed of M, A, and X elements on the periodic table, they are collectively referred to as the "MAX phase." The unique nano-layered crystal structure makes it have both metal and ceramic properties. Still, due to technical limitations in preparation and other aspects, such materials have not been widely recognized and applied. It is understood that after 1996, research on this type of material has been extensively carried out in Japan, Europe and China, and document preparation has always been a difficult problem to solve. "In layman's terms, in the past, it was mainly like the dough, the three types of raw materials M, A, X were put together to" burn ", but because there is often a" competitive "relationship between elements in nature, resulting in artificial burning 'There are few types of materials, and the quality is not high.'

How did the team of Tongrun Advanced Energy Materials Engineering Laboratory do it? "We have adopted a new synthesis strategy for the precise substitution of atoms at the A site. In simple terms, we first put together" skeletons "of the two materials M and X. Then through some method, the precise substitution of the atomic lattice position Put the A atom with a specific function we want. "It is understood that this method not only completely surpasses the traditional method in thinking but also can be further applied to the preparation of its two-dimensional derivative materials in a very environmentally friendly way.

Because the outer electrons of the MAX phase material are more abundant than the pure carbon of graphene, this determines that the nature of this material is more diverse, and the future application prospects may be broader than graphene.

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