Product Name: Tungsten Monoboride (W2B) 
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 
Usage: Good chemical stability, obvious resistance temperature change characteristics, capable of magnetron sputtering thin films, different from superhard WB and WB ₂, focusing on five directions: electronic thin films, functional coatings, high-temperature wear resistance, nuclear protection, and optical devices.

Name: Tungsten monoboride 
Molecular formula: BW2 
Molecular weight: 378.49 
CAS number: 12007-10-2 
Density: 1.6 (g/mL, 25/4 ℃) 
Melting point: 2670 (º C) 
Properties: Tungsten monoboride has high melting point, high hardness, high conductivity, wear resistance, high temperature resistance, and corrosion resistance. It also has comprehensive neutron and gamma ray shielding properties. 
Synthesis method: 
Solid phase method: Prepare tungsten monoboride from metal tungsten and boron as raw materials, with the following reaction equation. Thoroughly mix, grind, and shape stoichiometric tungsten powder and elemental boron, and heat at 1400 ℃ or above to react to obtain tungsten monoboride. Continue the reaction to generate W2B, which is then cooled and crushed to obtain the product. 
Application fields: 
1、 Semiconductor and Microelectronics Industry (Core Applications) 
1. Sputtering targets are made by depositing W ₂ B onto the target material and chip film, and then sputtering them onto the wafer through magnetron sputtering and ion beam sputtering PCB、 Thin film coating on the surface of chip components is used as a metal barrier layer and ohmic contact layer in integrated circuits to block copper diffusion and improve chip reliability. 
2. Temperature sensitive thermistor (thermistor) has a large range of resistivity changes with temperature, and can be used to prepare negative/positive temperature coefficient thermistor (thermistor) for circuit over temperature protection, temperature sensing, and temperature control detection modules. 
3. Field emission electronic devices have excellent field electron emission performance and are used for micro field emission cathodes, vacuum microelectronic devices, and micro display screen emitters. 
4. Precision resistor components have strong resistance stability at high temperatures, making high-power, high-temperature resistant precision fixed resistors. 
2、 Optical Communication and Optical Modulation Devices 
1. Combining specific light absorption and reflection characteristics, as an optical modulation material, processed into optical switches, fiber optic attenuators, and optical signal modulation chips, applied in high-speed optical communication links; 
2. The infrared band is stable and can be used as a wear-resistant protective coating for infrared windows. 
3、 Mechanical manufacturing, wear-resistant and high-temperature resistant coatings, and superhard composite materials 
1. Wear resistant and anti-corrosion coatings for components, plasma spraying and PVD deposition of W ₂ B coatings, used for bearings, gears, hydraulic valve cores, molds, and stamping fixtures to enhance wear resistance, anti bite, acid and alkali corrosion resistance, and prevent oxidation and failure under high temperature conditions; 
2. A small amount of hard alloy reinforcement phase is added to WC hard alloy and tungsten based alloy to improve alloy toughness and high-temperature strength. It is used for high-end cutting tools, mining drilling bits, and wear-resistant composite sheets for petroleum drilling; 
3. High temperature refractory structural components have high melting points and low thermal expansion coefficients, and are used as sintering components for high-temperature furnace linings, crucibles, and high-temperature fixtures. 
4、 Aerospace, defense and military industry fields 
1. High temperature protective coating for aircraft is used as a surface coating for engine components, tailpipes, and hot end components to resist high-temperature gas erosion, high-temperature oxidation, and thermal shock impact; It can also be used as reinforcing particles for nickel based high-temperature alloy matrix to prepare ultra-high temperature lightweight composite materials; 
2. High density and good toughness of armor and protective materials, used as filling phases for armor composite materials to enhance penetration resistance; 
3. Structural coatings for corrosion-resistant components in extreme environments for aerospace and marine equipment under strong corrosion conditions. 
5、 Radiation shielding materials for nuclear industry (important characteristic applications) 
1. Tungsten high-density can shield gamma rays, boron element (¹⁰ B) efficiently captures thermal neutrons, and W ₂ B has the dual shielding ability of neutron and gamma rays; 
2. Powder metallurgy preparation of tungsten monoboride aluminum/titanium based composite shielding plates for reactor auxiliary shielding, protection of radioactive experimental equipment, and lining of spent fuel storage containers; 
3. Resistant to radiation and structurally stable at high temperatures, suitable for use in high-temperature radiation environments around nuclear reactors. 
6、 Other niche cutting-edge applications 
1. The intrinsic catalytic activity of transition metal monoborides as catalytic materials is studied as non precious metal catalysts in hydrogen evolution reactions and hydrogenation catalysis; 
2. Corrosion environment electrode conductivity+acid and alkali resistance, used as corrosion-resistant inert electrode in electrolysis industry. 
Packaging and storage: 
This product is packaged with inert gas and anti-static properties. It should be sealed and stored in a dry and cool environment. It should not be exposed to air for a long time to prevent moisture and aggregation, which may affect its dispersibility and effectiveness.