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 stability, and refines aluminum grains well. This makes it suited for many 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 boron fluoride or oxide, or through aluminum heat reaction. 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 uniform size. This will allow the powder to be controlled in particle size and shape and provide good performance.

Technical Implementation Element

The invention aims to solve these problems by providing an aluminum diboride and its preparation method that can control particle size and shape and ensure good performance. The invention reveals a method to prepare aluminum diboride. This includes adding the precursor raw materials in the liquid phase to get the evenly mixed solution, followed by ultrasonic mixing. The precursor raw materials can be boron powder or aluminum powder.


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