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Particle size D 0.1 ～ 2.5μm, length 10-50um, purity 99+, gray-green. Silicon carbide whisker is a kind of high-strength whisker-like (one-dimensional) single crystal with many excellent mechanical properties such as high strength and high modulus. Mainly used in ceramics, high-temperature components in the aerospace field, main strong bearing blocks, large mud pumps, etc. Physical characteristics:...
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Nano silica dispersion, silicon oxide dispersion is translucent liquid, mainly used in coatings, refractory materials, textile industry, etc., with water resistance, fire resistance, scrub resistance, stain resistance. After the nano-silica is dispersed into a liquid, the appearance varies from white milky to colorless and transparent according to different dispersion systems. After the nano-silic...
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Boron carbide, also known as black diamond, has a molecular formula of B₄C, usually grayish black powder. It is one of the three hardest materials known (the other two are diamond, cubic phase boron nitride), used in tanker armor, body armor, and many industrial applications. Its Mohs hardness is 9.3. Hard black shiny crystals. Harder than industrial diamond, but higher than silicon carbide. Compa...
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Tungsten carbide powder (WC) is the main raw material for the production of cemented carbide, chemical formula WC. The full name is Wolfram Carbide. Tungsten carbide powder is a black hexagonal crystal with metallic luster, hardness similar to diamond, and a good conductor of electricity and heat. The melting point is 2870 ° C, the boiling point is 6000 ° C, and the relative density is 15.63 (18 °...
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Nano-scale silicon carbide has the following characteristics: 1. Its microhardness is 2840 ～ 3320kg / mm², its hardness is between corundum and diamond, and its mechanical strength is higher than corundum. 2. It has a strong ability to absorb infrared waves, can be used as infrared absorbing and transmitting materials, made into functional films or fibers, and can also be used for polishing and gr...
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Iron nanopowder is black powder with a purity of over 99.9%, and can be divided into spherical and flake. Spherical nano iron powder Particle size 20-50nm, 50-70nm, 80-100nm, 100-200nm Application 1. Absorbing materials Metal nano-powders have a special absorption effect on electromagnetic waves. Iron, cobalt, zinc oxide powder and carbon-coated metal powder can be used as high-performance millime...
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What exactly is a thermal battery? Thermal batteries are also called thermally activated reserve batteries. The single cell of the thermal battery is composed of a positive electrode (FeS iron-sulfur alloy), an electrolyte, and a heating sheet (iron powder). The main body of the heating sheet is iron powder, and its conductivity is relatively high. FeS iron sulfur is a semiconductor material, whic...
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Boron carbide has a high neutron absorption capacity. The neutron capture cross-section is high and the capture energy spectrum is wide. The thermal cross-section of 10B is as high as 347 × 10-24 cm2, second only to a few elements such as gadolinium, samarium, and cadmium. At the same time, compared with pure elements B and Gd, B4C is low in cost, does not produce radioisotopes, has low secondary ...
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1. Thermally conductive fillers commonly used in insulating polymers 1. Nitride filler and its application The nitride fillers are mainly aluminum nitride (AlN), boron nitride (BN) and silicon nitride (Si3N4), etc. due to their high thermal conductivity, good electrical insulation performance, excellent high temperature resistance and excellent dielectric properties, etc. Characteristics and widel...
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Nano oxides have many unique properties and have been widely used in textile fields such as antibacterial, deodorant, and ultraviolet protection. Similarly, nano-oxides have a positive effect on anti-wrinkle finishing. Nano-titanium dioxide or nano-silica is added to the traditional system to form nano-oxide anti-wrinkle finishing liquid through high-speed shearing, so that the fabric has anti-wri...
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Nanotechnology has been successfully applied in China's medical field. A group in Nanjing used nano silver technology to develop and produce a medical dressing, a long-acting broad-spectrum antibacterial cotton. The production principle of this antibacterial cotton is to make silver into 20 nanometer ultrafine particles through nanotechnology, and then attach it to cotton fabric. Silver has the ef...
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By mixing a small amount of nano silica into concrete, ultra-high strength and ultra-high durability concrete can be easily prepared. At present, a large number of research results have proved that nano SiO2 has a good modification effect on cement. The cement paste doped with nano silica has reduced fluidity, shortened setting time, and significantly improved early strength. Nano-doped nano silic...
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