Product Name: Tungsten Monoboride (WB) 
Specification: 0.8-10um (D50) 
Appearance: Irregular 
Color: Black Grey 
Features: high melting point, high hardness, chemical stability, good metal conductivity, as well as excellent wear resistance and high toughness 
Application: Wear resistant coatings for wear-resistant parts and semiconductor films, drilling, machinery manufacturing, metal processing, defense industry, medicine, environmental remediation and other fields

Tungsten Borate 
Molecular formula: WB 
CAS：12007-09-9 
MDL：MFCD00049708 
Molecular weight: 194.65 
Density: 10.77g/cm3 
Melting point: 2900 ℃ 
Appearance: Black gray solid powder 
Properties: Tungsten boride has an octagonal crystal structure, a black powder like appearance, a density of 1.6 g/ml, a melting point of 2670 ℃, is insoluble in water, soluble in aqua regia, has high hardness, high toughness, wear resistance, high temperature resistance, corrosion resistance, good chemical stability and conductivity, and excellent neutron absorption effect. 
Attention: It will decompose in natural environments, so it is generally stored in a sealed, cool, and dry environment. 
Application: 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. W-B compounds have excellent properties such as high melting point, high hardness, high conductivity, and high corrosion resistance and oxidation resistance to different types of media. These properties make W-B compounds widely used in harsh environments for wear-resistant coatings and semiconductor films, high-temperature corrosion-resistant electrode materials, casting molds, crucibles, etc. 
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 regulate 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.