Ceramic materials made from aluminum-mgb are known for their high hardness, high abrasion resistance, and high chemical stability. This makes them a popular choice in both military and high-tech equipment. The limited application of aluminum-MgB ceramic materials is due to their weak toughness. There are currently several preparation methods for aluminum magnesium-boron ceramics. These include heat treatment, hot pressing sintering and mechanical alloying.
High energy consumption is a result of mechanical alloying hot press sintering. Iron pollution can be caused by ball grinding and quenching steel. The process is complex and difficult to manage. High energy and cost are the main drawbacks of heat treatment. It is also easy to introduce impurities. Crystal evolution deposition and metal salt preparation methods are high-purity and can eliminate the formation of phase due to heat treatment. But they also have high energy costs, long cycles, and high prices. These methods may also be used to prepare aluminum magnesium boren ceramics. But there are many technical drawbacks and shortcomings.
The preparation method
Aluminum powder, magnesium, and boron raw materials are used. Boron powder is annealed using the following: mechanical alloying and preloading activation, high-temperature pressure pressurized Sintering aluminum magnesium, boron material block. This dense microstructure has a hardness of 27.2GPa and fracture toughness is 3 mpa.m0.5.
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