Boride Powder

Aluminum Diboride AlB2 Powder CAS 12041-50-8

Item No.: Tr-AlB2
The structure of aluminum boride is similar to the intermetallic compound, and its structure mainly depends on the crystal structure of aluminum metal and boron and not on their valence relationship.
Purity>98.5%
Particle Size: 5-10 um
INQUIRY
Description
Aluminum Diboride AlB2 Powder Properties
About Aluminum Diboride AlB2 Powder:
Aluminum boride (AlB2) is a binary compound formed by aluminum element and boron elements. It is a red solid under normal temperature and pressure. It loses its surface gloss when heated. It is stable in cold dilute acid and decomposed in hot hydrochloric acid and nitric acid.
Aluminum boride (AlB2) is one of two compounds of aluminum and boron, the other is AlB12, and they are commonly referred to as aluminum boride. AlB12 is a black and shiny monoclinic crystal with a specific gravity of 2.55 (18°C). It does not dissolve water. The single crystal of AlB2 is parallel to the hexagon of the base.
 
The structure of aluminum diboride (AlB2) is similar to that of graphite flakes. There are Al atoms between B atoms and B atoms, which is very similar to the structure of magnesium diboride. The AlB2 single crystal exhibits metal conductivity along an axis parallel to the hexagonal plane of the substrate.
 
Aluminum boride is considered a hazardous substance because it reacts with acid and hydrogen to generate toxic gases. For example, it reacts with hydrochloric acid to release borane and aluminum chloride.
 
The crystal structure of AlB2 is often used to describe the prototype structure of intermetallic compounds. There are many structure types in the AlB2 structure family. Feel free to send an inquiry to get the latest price if you would like to buy Aluminum Diboride AlB2 Powder in bulk.

Properties of AlB2 powder:
ITEM NO       Appearance                Particle size      Purity     Density           CAS                EINECS
Tr-AlB2-P1    gray black powder      30um                 99.9%    2.12g/cm3     12041-50-8      234-923-7
Tr-AlB2-P2    gray black powder      5-10um              98.5%    2.12g/cm3     12041-50-8      234-923-7
AlB2 yields a solution having a reducing soluble in dilute hydrochloric acid, and the solution may contain HB (OH), is not soluble in sulfuric acid but can be dissolved in nitric acid. Above 920 degrees AlB2 broken down into AlB12. 

Product performance of Aluminum Diboride AlB2 Powder:
Aluminum boride is an ionic compound, with a hexagonal crystal structure.  Aluminum boride at an absolute temperature of slightly 40K (equivalent to -233 ℃) will be transformed into a superconductor. And its actual operating temperature is 20 ~ 30K. To reach this temperature, we can use liquid neon, liquid or closed-cycle refrigerator to finish cooling. Compared to the current industry using liquid helium to cool the niobium alloy (4K), these methods are more simple and economical. Once it is doped with carbon or other impurities, magnesium diboride in a magnetic field, or there is a current passing, the ability to maintain the superconducting is as much as niobium alloys, or even better.

How is Aluminum Diboride AlB2 Powder produced?
Amorphous boron powder and aluminum powder are used as raw materials to prepare aluminum boride powder by powder metallurgy.
 
X-ray diffractometer and scanning electron microscope were used to determine the phase composition, relative content and micromorphology of the product, and 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.
 
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.
 
Diboron silane AlB2 indicates that the two elemental substances are formed by the reaction above 600°C. It is a layered structure in which Al atoms directly overlap (A, A-mode), and B atoms are filled in the triangular column formed by the direct overlap of Al atoms, that is, the boron layer is between the two aluminum layers.
 
The boron layer is similar to the graphite structure. The boron atoms are connected into a hexagonal network. The distance between each B atom and the other three B atoms is 0.173nm. There are six Al atoms connected to B, and they are wrapped on the top of the triangular pillar. AlB2 can be dissolved in dilute hydrochloric acid to produce a reducing solution, which may contain HB(OH)+3. AlB2 does not decompose dilute sulfuric acid but can decompose in nitric acid. AlB2 decomposes to AlB12 above 920℃.
 
Applications of Aluminum Diboride AlB2 Powder:
Aluminum boride is a random (or rhombic) white or light yellow powder. It can be used as:
Non-toxic flame retardant,
plastics,
rubber,
textiles,
coatings,
superconducting magnets,
transmission lines,
sensitive magnetic field detectors.

Storage conditions of Aluminum Diboride AlB2 Powder:
Aluminum boride nanopowder products should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition, should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of Aluminum Diboride AlB2 Powder:
We have many different kinds of packing which depend on the aluminum diboride AlB2 powder quantity.
Aluminum diboride AlB2 powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Aluminum diboride AlB2 powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

 

Aluminum Diboride AlB2 Powder Properties

Other Names aluminium boride, aluminum diboride, AIB2
CAS No. 12041-50-8
Compound Formula AlB2
Molecular Weight 48.604 g/mol
Appearance Copper-red solid
Melting Point >920 °C (decomposes)
Solubility in water Insolutable
Density 3.19 g/cm3
Purity >98.5%
Particle Size 5-10um
Poisson's Ratio N/A
Specific Heat N/A
Thermal Conductivity N/A
Thermal Expansion N/A
Young's Modulus N/A
Exact Mass 49.000149
Monoisotopic Mass 49.000149
   
   

Aluminum Diboride AlB2 Powder Health & Safety Information

Safety Warning N/A
Hazard Statements N/A
Hazard Codes N/A
Risk Codes N/A
Safety Statements N/A
RTECS Number N/A
Transport Information NONH for all modes of transport
WGK Germany 3
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