What is Aluminum Diboride AlB2 Powder?


Mar 26, 2023 ,

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Introduction to Aluminum Diboride AlB2 powder Aluminum diboride Or Aluminum Boride, AlB2 This inorganic compound has the chemical name AlB2. It is a binary mixture of aluminum and boron. It is a grey-red, solid that is insoluble in water at both room temperature and pressure. When heated it loses its gloss and stabilises in cold dilute acids. It then decomposes quickly in hot hydrochloric or nitric acids.
Aluminum diboride This is made from a mixture of fine powdered aluminum and boron that is then heated to react with it. It is one the two aluminum-boron compounds, AlB12 being the other. They are also known as aluminum boreide.
Aluminum boride can be dangerous because it reacts to acid and hydrogen to make toxic gases. Aluminum boride can react with hydrochloric Acid to release borane and aluminum cyanide.

AlB2 Structures made of aluminum diboride
The structure aluminum boride Similar to the structure of metal interdides, it is dependent mainly on the crystal structures of aluminum and boron. AlB2, AlB4, AlB12, and AlB12 are the aluminum borides. AlB2 is formed when two elements over 600 react to form the diboride AlB2. It is a layered structure that Al atoms directly overlap. A, A and B atoms are filling the triangular column made by the direct overlap Al. This is the boron layer, which is located between the aluminum layers. The graphite-like structure of the boron layer is also similar. The hexagonal network connects the boron molecules. Each Batom is approximately 0.173nm distant from the other B atoms. Additionally, six Al atoms connect to B. These Al atoms occupy the apex in the triangular column. Dilute hydrochloric Acid can dissolve AlB2 to make a reductive mixture that may contain HB (OH)+. AlB2 is not soluble in dilute sulfuric acids, but is soluble in nitric. AlB2 was able to decompose AlB12 at 920
Aluminum Diboride AlB2 Properties
Other Names aluminum boride, aluminum diboride, AIB2
CAS No. 12041-50-8
Formula compound AlB2
Molecular Weight 48.604
Appearance Solid copper-red
Melting Point 920degC
Boiling Point N/A
Density 3.19g/cm3
Solubility of H2O Insoluble
Exact Mass 49
Aluminum Diboride AlB2 Powder CAS 12041-50-8

Aluminum Diboride AlB2 Pulp Powder – Physicochemical and Application Properties
AlB2 single crystal displays metallic conductivity along an alignment parallel to the hexagonal basis plane. Boron – Aluminum composite aluminum, aluminum alloy reinforced with or protective coating boron fibr. Boron fiber generally has a volume content between 45% and 55%. It has low specific gravity, high mechanical properties and a low specific gravity. The longitudinal tensile and elastic strength of the unidirectionally strengthened boron/aluminum composite vary depending on the material and process. The specific strengths and longitudinal specific elastic module are approximately 35 and 34 respectively, depending on the process and material. It exhibits good fatigue resistance and high strength below 400.
It was used for fan blades in turbojet engines as well as aerospace and structural parts. For manufacturing plate, profile, or more complicated shapes, hot pressing diffusion bonds is used. Continuous casting is also an option to produce different profiles.
Aluminum boride is used in ceramics as well medical equipment, nuclear energy, refractory and other fields.

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