High entropy boride ceramic materials were prepared using our company’s fast hot pressing sintering furnace CNE-FHP-808. Fast sinter boride high entropy Ceramics have the advantages of low energy requirements, simple process, and fast preparation speed.
Boride is a traditional superhard ceramic with excellent performance in hardness, strength, high-temperature resistance, and wear resistance. It has the potential to serve in high-temperature wear-resistant working conditions. However, boride ceramics have a high melting point and a low self-diffusion coefficient, which makes it extremely difficult to prepare. It is easy to form oxide-containing impurities on the surface of boride particles. Therefore, reducing the difficulty of preparation by increasing the self-diffusion coefficient and improving its oxidation resistance becomes the key to designing and preparing boride ceramic materials with good high-temperature wear resistance.
The emergence of high-entropy ceramic materials has brought new possibilities for solving this problem due to the high entropy effect of high entropy materials in thermodynamics, the lattice distortion effect in structure, the hysteresis diffusion effect in dynamics, and the “cocktail” effect in performance. On the one hand, it often presents better comprehensive performance than a single component in performance. On the other hand, it also presents great designability in performance.
High-entropy ceramics combine the properties of high-entropy alloys and ceramics, covering carbides, nitrides, borides, silicides, sulfides, etc. They have excellent mechanical properties, thermal stability, and chemical stability. They can be used in wear-resistant and corrosion-resistant coatings, thermoelectric materials, batteries, etc.