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How is aluminum diboride AlB2 powder produced?

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Overview of Aluminum Diboride AlB2 Powder

Aluminum boride (AlB2) is a binary compound formed by aluminum and boron. It is a red solid under normal temperature and pressure. It loses surface gloss when heated. Stable in cold dilute acid, decomposed in hot hydrochloric acid and nitric acid.


Aluminum boride (AlB2) is one of two compounds of aluminum and boron, the other being AlB12, which are commonly referred to as aluminum boride. AlB12 is a black glossy monoclinic crystal with a specific gravity of 2.55 (18°C). It does not dissolve water. The AlB2 single crystal is parallel to the hexagon of the substrate.

 The structure of aluminum diboride (AlB2) is similar to that of graphite flakes. There is an Al atom between the B atom and the B atom, which is very similar to the structure of magnesium diboride. AlB2 single crystals exhibit metallic conductivity along an axis parallel to the hexagonal plane of the substrate.

 Aluminum boride is considered a hazardous substance because it reacts with acids and hydrogen to produce toxic gases. For example, it reacts with hydrochloric acid to liberate borane and aluminum chloride.

 The crystal structure of AlB2 is often used to describe the prototype structure of intermetallic compounds. There are various structural types in the AlB2 structural family.

A reducing solution is formed, soluble in dilute hydrochloric acid, the solution may contain HB(OH), insoluble in sulfuric acid but soluble in nitric acid. Above 920 degrees AlB2 is decomposed into AlB12.

Product Properties of Aluminum Diboride AlB2 Powder

Aluminum boride is an ionic compound with a hexagonal crystal structure. Aluminum boride with an absolute temperature of slightly 40K (equivalent to -233°C) turns into a superconductor. Its actual working temperature is 20 ~ 30K. To achieve this temperature, we can use liquid neon, liquid or closed cycle refrigerators to accomplish cooling. These methods are simpler and more economical than the current industrial use of liquid helium to cool niobium alloys (4K). Once doped with carbon or other impurities, magnesium diboride in a magnetic field, or with an electric current flowing through it, retains superconductivity as much as, or even better than, niobium alloys.

How is aluminum diboride AlB2 powder produced?

Using amorphous boron powder and aluminum powder as raw materials, aluminum boride powder is prepared by powder metallurgy method.

 The phase composition, relative content and microscopic morphology of the product were determined by X-ray diffractometer and scanning electron microscope. The influence of buried powder on the phase composition of the product was studied, and the optimal process parameters of the synthesis process were determined. Decide.

 The structure of aluminum boride is similar to that of intermetallic compounds, and its structure mainly depends on the crystal structure of aluminum metal and boron, rather than their valence relationship.

 Diborosilane AlB2 shows that these two elements are formed by the reaction above 600℃. It is a layered structure in which Al atoms are directly overlapped (A, A-mode), and B atoms are filled in the triangular pillars formed by the direct overlap of Al atoms, that is, the boron layer is located between two aluminum layers.

 The boron layer resembles a graphite structure. The boron atoms are connected in a hexagonal network. The distance between each B atom and the other three B atoms is 0.173 nm. There are six Al atoms attached to B, which are wrapped on top of the triangular pillars. AlB2 is soluble in dilute hydrochloric acid to produce a reducing solution, which may contain HB(OH)+3. AlB2 does not decompose dilute sulfuric acid, but decomposes in nitric acid. AlB2 decomposes to AlB12 above 920℃.

Application of Aluminum Diboride AlB2 Powder

Aluminum boride is a random (or rhombic) white or pale yellow powder. Can be used as: non-toxic flame retardants, plastics, rubber, textiles, coatings, superconducting magnets, transmission lines, sensitive magnetic field detectors.

Aluminum boride AlB2 powder price

The price of aluminum diboride AlB2 powder varies randomly with factors such as production cost, transportation cost, international conditions, exchange rate, and market supply and demand of aluminum diboride AlB2 powder. Tanki New Materials Co.,Ltd aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full range of customized services. If you are looking for aluminum diboride AlB2 powder, please feel free to contact us for the latest price of aluminum diboride AlB2 powder.

Aluminum boride AlB2 powder supplier

As a global supplier of aluminum diboride AlB2 powders, Tanki New Materials Ltd. has extensive experience in advanced engineering material properties, applications and cost-effective manufacturing. The company has successfully developed a series of boride powder materials (including aluminum diboride AlB2 powder, molybdenum boride, tungsten boride, etc.), high-purity targets, functional ceramics and structural devices, and provides OEM services.

Aluminum Diboride AlB2 Powder Properties
Other Namesaluminium boride, aluminum diboride, AIB2
CAS No.12041-50-8
Compound FormulaAlB2
Molecular Weight48.604 g/mol
AppearanceCopper-red solid
Melting Point>920 °C (decomposes)
Solubility in waterInsolutable
Density3.19 g/cm3
Particle Size5-10um
Poisson's RatioN/A
Specific HeatN/A
Thermal ConductivityN/A
Thermal ExpansionN/A
Young's ModulusN/A
Exact Mass49.000149
Monoisotopic Mass49.000149

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