Aluminium diboride AlB2 powder

 1, Used as a semiconductor material for high temperature rectifier, doped material, the tube material, cathode materials and high-temperature nuclear reactor neutron absorbing material.

2, This special alloy has a good wear resistance, heat resistance, oxidation resistance, resistance and temperature have a linear relationship.It can be used for  metal ceramic, wear-resistant coating, high temperature resistance, crucible lining, filling and anti-corrosion spray chemical equipment. It also can be used as super-hard inorganic materials.

3,can replace the silicon steel sheet, more than 50% energy saving.

4,have a certain application in the nuclear industry, rocket nozzles, high temperature bearings, thermoelectric protection tube, auto parts and other manufacturing. 

Aluminum borate (AlB2) is a kind of binary compound formed by aluminum and boron. 

It is a gray red solid under normal temperature and pressure. It is stable in cold dilute 

acid, and decomposed in hot hydrochloric acid and nitric acid. It is one of the two 

compounds of aluminum and boron. The other is alb12, which is usually called aluminum 

borate. Alb12 is a black lustrous monoclinic crystal with a specific gravity of 2.55 (18 ℃). 

It is insoluble in water, acid and alkali. It decomposes in hot nitric acid and is obtained 

by melting boron trioxide, sulfur and aluminum together.

In structure, B atoms form graphite flakes with Al atoms between them, which is very 

similar to the structure of magnesium diboride. The single crystal of AlB2 shows metal 

conductivity along the axis parallel to the hexagonal plane of the substrate. Boron 

aluminum composites are reinforced by boron fiber or boron fiber with protective coating. 

The volume content of boron fiber is about 45% ~ 55%. Low specific gravity, high 

mechanical properties. The longitudinal tensile strength and elastic modulus of unidirectional 

reinforced boron aluminum composite are about 1.2 ~ 1.7gpa and 200 ~ 240gpa, respectively. 

The longitudinal specific elastic modulus and specific strength are about 3 ~ 5 times and 

3 ~ 4 times of titanium alloy duralumin and alloy steel, respectively. It has been used in 

turbojet engine fan blades, aerospace vehicles and satellite structures. The hot pressing 

diffusion bonding method is used to manufacture plates, profiles and parts with complex 

shapes, and continuous casting method can also be used to manufacture various profiles.