Aluminum Diboride Powder Properties And Preparation

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Aluminum diboride AlB2 is the chemical formula of this binary compound, which is formed from aluminum and boran. Aluminum diboride has a red color under normal pressure and temperature.

Aluminum Diboride Powder Properties

Aluminum diboride decomposes when heated. It is stable in cold dilute acids but not in hot hydrochloric or nitric. Aluminum diboride comes from mixing aluminum powders with boron after they have been heated.
Aluminum boride (also known as AlB12) is one of two compounds containing aluminum and boran. AlB12 has a black monoclinic crystal that is shiny and has a specific gravity of 2,55 (18degC). It is insoluble with water, alkali or acid. Nitric acid hot decomposes it. It is produced by melting together boron, sulfur and aluminium.

The structure is similar to that of magnesium diboride. The metallic conductivity of single crystals of aluminium diboride is parallel to the hexagonal surface of the substrate.

Aluminum Diboride Powder Preparation

Powder metallurgy prepares AlB12 using amorphous Boron powder and Aluminum powder as the raw materials. Powder metallurgy is used to prepare AlB12 powder using amorphous boron powder and aluminum powder as raw materials.

Aluminum boride’s structure is similar to other intermetallic compounds. The main factor affecting its structure is the crystallization of aluminum metal and of boron. Aluminum borides consist of AlB2, AlB4, AlB12 and their valence relationship.

Two simple substances with a melting point above 600 can react to form aluminum diboride AlB2. This is a multi-layered structure. Al atoms directly overlap (A, mode A), and B-atoms are filled into the triangular pillars created by the direct overlap between Al atoms.

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