Aluminum-mg-b ceramic materials are characterized by high hardness, good abrasion resistance and good chemical stability, so they are often used in military equipment and mechanical equipment with high mechanical properties. However, due to the low toughness of aluminum-Mg-B materials, their application scope is limited. At present, the preparation methods of aluminum magnesium boron ceramics materials include mechanical alloying hot pressing sintering method, heat treatment method, crystallization deposition method, metal salt preparation method.
Mechanical alloying hot pressing sintering method has high energy consumption, iron pollution caused by quenching steel ball during ball grinding, and the process is complicated and difficult to control. Heat treatment method has high energy consumption, high cost, easy to introduce impurities and low microhardness. Although the crystal evolution deposition method and the metal salt preparation method have high purity, they can also avoid the phase generated by the heat treatment of high temperature and long time for raw materials, but they have high energy consumption, long cycle and high cost. Although the above methods can also prepare aluminum magnesium boron ceramics, but there are many technical shortcomings and drawbacks.
Using aluminum powder, magnesium powder and boron powder raw material, boron powder annealed, according to the proportion of powder, mechanical alloying, preloading forming, electric field activation and high-temperature pressurized sintering aluminum magnesium and boron ceramic material block, aluminum magnesium and boron ceramic material block dense microstructure and hardness of 27.2 GPa, the fracture toughness of 3 mpa m0.5, surface friction coefficient is 0.45 ~ 0.55, the preparation technology is advanced, accurate data are accurate, safe and reliable, low energy consumption, no pollution, is the ideal method of preparation of magnesium aluminum boron ceramic material.
TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global chemical material supplier & manufacturer with over 12 years experience in providing super high quality chemicals and Nano materials. The Aluminum Magnesium Boride Powder produced by our company has high purity, fine particle size and impurity content. Lower, please contact us if necessary.
