Product Name: Tungsten Diboride (WB2) 
Specification: 0.8-10um (D50) 
Appearance: Irregular 
Color: Black Grey 
Features: high hardness, high toughness, wear resistance, high temperature resistance, corrosion resistance, good chemical stability and conductivity, and excellent neutron absorption effect 
Application: Cutting tools, wear-resistant coatings, semiconductor films and other fields、

Name: Tungsten diboride 
Molecular formula: WB2 
CAS：12228-69-2 
Appearance: Black gray solid powder 
Density: 10.77g/cm3 
Melting point: 2900 ℃ 
Properties: The structure of tungsten boride is an octagonal crystal with a black powder like appearance. It is insoluble in water but soluble in aqua regia. It has high hardness, toughness, wear resistance, high temperature resistance, corrosion resistance, good chemical stability and conductivity, and excellent neutron absorption effect. 
Application: BW2 has high melting point, high hardness, high conductivity, and high corrosion resistance and oxidation resistance to different types of media. These excellent characteristics make T-B compounds widely used in wear-resistant coatings and semiconductor films, high-temperature corrosion-resistant electrode materials, casting molds, crucibles, etc. in harsh environments. 
Tungsten boride is commonly used as a structural material, wear-resistant material, electrode material, semiconductor film, cutting tool material, corrosion-resistant material, etc. Among them, preparing a workpiece with a boron rich tungsten coating, comprising a workpiece substrate, and sequentially setting a tungsten layer, a boron rich tungsten gradient layer, and a boron rich tungsten coating on the substrate; The boron content gradually increases along the thickness direction of the tungsten layer in the workpiece substrate and in the gradient layer of tungsten boride. 
Application of tungsten boride metal/polymer based composite materials in the field of nuclear shielding materials 
At present, nuclear shielding materials usually require the addition of both neutron and gamma ray shielding components to achieve the function of simultaneously shielding neutrons and gamma rays, and the tungsten boride developed by our team can precisely meet the above requirements. Therefore, our team has developed high-density tungsten boride aluminum based composite materials, tungsten boride titanium based composite materials, and tungsten boride polymer based composite materials with uniform component distribution, excellent mechanical properties, and neutron and gamma ray shielding properties through material preparation techniques such as metal infiltration and powder metallurgy. The relevant preparation process is simple, the shielding components are easy to control, and can meet different radiation environments. The thermal neutron shielding rate of the 3mm thick tungsten boride aluminum based composite material reached 99%; The shielding rate of 15cm thick tungsten boride aluminum based composite material against gamma rays (0.662 MeV) reached 99%. It can be seen that the new type of boron tungsten composite material for nuclear radiation protection developed by our team is expected to be widely used in spent fuel storage, aerospace, reactor shielding, instrumentation components, medical radiation protection and other fields. 
Attention: It will decompose in natural environments, so it is generally stored in a sealed, cool, and dry environment.