High entropy ceramic powder
Basic information
In a thermodynamic system, entropy is a measure of the chaotic degree of the system. The higher the chaotic degree of the system, the greater the entropy.
The entropy generated by the disorder of the internal configuration of a system is called configuration entropy. The more components of the material, the closer the number of moles of each component is, and the greater the configuration entropy of the material. According to the configuration entropy of materials, materials can be divided into low entropy, medium entropy and high entropy materials.
Generally, high entropy ceramics are new ceramic materials with simple crystal structure (such as body-centered cubic BCC, face-centered cubic FCC and close-packed hexagonal HCP), which are composed of five or more metal elements and one nonmetal element.
According to the classification of chemical composition, it can be divided into oxide high entropy ceramics and non-oxide high entropy ceramics. High-entropy oxide ceramics can be classified according to crystal structure, such as rock salt structure, fluorite structure, perovskite structure and spinel structure. Non-oxide high entropy ceramics are classified according to composition, including carbide, boride, nitride and silicide high entropy ceramics.
For more information about high entropy ceramics, please refer to WeChat official account, Forsman.https://mp.weixin.qq.com/s/AERs3cq6irAk6ASSqETuvQ
Application of high entropy ceramic powder
In recent years, High-entropy materials have attracted much attention because of their special properties. This kind of material is usually formed by solid solution of several components in equal proportion or near equal proportion. It has different structural and performance characteristics from traditional materials, and is expected to be widely used in aerospace, new energy electronic devices, nuclear energy applications and other fields.
As a rising star in ceramic industry, high entropy ceramics have complex composition and huge research system, which brings great challenges to material design and preparation. At the same time, it has many advantages, such as huge space for composition adjustment, unique entropy effect and controllable material properties, etc., and it is a rich ore to be mined in the field of materials.
Product advantage
Dezhou factory in Forsman mainly produces ultra-high temperature ceramic powder, and high entropy ceramic material is one of them, which can produce nano-grade, sub-micron grade, micron grade and other products with different particle sizes. The industrialized products are -200 mesh, -300 mesh and -400 mesh, all of which can be supplied in tonnage grade. The production process can also be adjusted according to the demand to control the particle size and distribution width of high entropy ceramic powder, and the particle size can be customized by customers. The standard packaging specifications are 2 kg and 25 kg, and the packaging specifications can be customized according to the customer's feeding quantity.
Shenyang State Laboratory of Materials Science, Institute of Metallurgy, Chinese Academy of Sciences, used ceramic raw materials from Forsman to prepare high entropy ultra-high temperature ceramic insulation materials with controllable microstructure and excellent performance. See WeChat official account, Forsman for details of this paper and more papers from Forsman clients.https://mp.weixin.qq.com/s/jD7g2Ma1wUmkMwrV5ABItg
Product display
note：
Fig.| 4208002 Mo2TiAlC2 -400 mesh
Fig. | Packaging of High Entropy Ceramic Products
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