The Invention Relates to a Preparation Method and a Process of Aluminum Diboride Powder

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Background Technology

Aluminium diboride, also known as AlB2, is a compound that has high theoretical burning heat, a high melting temperature, good chemical resistance, and refines aluminum grains well. This makes it an excellent material for various applications. AlB2 has many applications, including particle enhancers to improve wear resistance, hydrogen storage materials, solid propellants, etc. AlB2 is currently prepared in two ways: by direct solid phase sintering between boron powder, aluminum powder, and boronoxide or borofluoride, or through aluminum heat reactions of aluminum and boronoxide or borofluoride. AlB2 Powder prepared by either of these two methods suffers from uneven particle size and form, which results in a reduction of performance. There is a need for a method that can prepare AlB2 Powder with standardized size. This will allow the powder to be uniform in size and shape and provide good performance.

Technical Implementation Element

In this application, the technical problem is to develop an aluminum diboride and its preparation method that can control particle size and shape and ensure good performance. The invention discloses an aluminum diboride preparation method that includes the following steps to solve the problems above: adding the boron powder into the liquid phase through ultrasonic mixing, getting the uniformly mixed mixture, and then vacuum freeze-drying the solvent to obtain treated precursor raw materials.

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