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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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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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Because of its low density, good oxidation resistance, high temperature resistance and corrosion resistance, silicon carbide has promoted the development of silicon carbide in the field of brake pads. Silicon carbide composite material is a material that can meet the high temperature of 1650-1700 ℃. Adding silicon carbide powder in the production of brake pads can more effectively improve the stab...
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Silicon carbide whiskers are cubic whiskers and belong to the same crystal type as diamond. It is the whisker product with the highest hardness, the highest modulus, the highest tensile strength, and the highest heat-resistant temperature among the whiskers that have been synthesized. There are two forms of α type and β type, among which β type has better performance than α type. Type β has higher...
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Nanomaterials refer to materials in which at least one dimension in the three-dimensional space is in the nanoscale range or is composed of them as basic units. Nano-gold is a kind of nano-materials, which are nano-sized particles of gold, with a diameter generally between 1-100 nm. Nano gold has very special optical properties, which are mainly manifested in two aspects of light absorption and sc...
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The field of biomedicine is a brand-new research field formed by integrating the methods and theories of medicine, biology and other related disciplines. Its research content includes biomedicine, clinical applied chemistry, cytology and immunology. With the rapid development of technology, cutting-edge research and inventions in many popular fields play an important role in the field of biomedici...
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1. Titanium carbide tool materials AL2O3-TIC ceramics is the earliest development of composite ceramic tool system. Hard particles of nano-titanium carbide with a mass fraction of 15-40% are dispersed in the matrix, which not only improves the hardness of the material, but also improves the fracture toughness of the material. The cutting performance of the composite AL2O3-TIC ceramic tool is much ...
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1. As a sensor material Nano TIO2 can be used not only for humidity and pressure sensitive components, but also as a sensor material to detect a variety of gases. For example, TIO2 can detect flammable gases such as H2, CO, and O2, and is especially used as an automobile exhaust sensor. By measuring the oxygen content in automobile exhaust, it can control the efficiency of automobile engines. 2. T...
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Precious metals refer to some rare and expensive metal materials, such as silver, gold, ruthenium, rhodium, palladium, platinum, iridium and other expensive metals. Nanomaterials refer to materials at the nanometer level on one-dimensional or multi-dimensional scales, such as nanowires and nanoparticles. Noble metal nanoparticles are nanomaterials composed of these noble metals, such as gold nanop...
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Black silicon carbide is made of quartz sand, petroleum coke and high-quality silica as the main raw materials, and is smelted at high temperature in a resistance furnace. The raw materials used in the manufacture of green silicon carbide, such as black silicon carbide, are roughly the same, and industrial salt is added as a reactant and accelerator to react in a resistance furnace. In terms of it...
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1. The lubricity of boron nitride Boron nitride came out more than 100 years ago. Its earliest application polymorph is hexagonal boron nitride as a high-temperature lubricant, abbreviated as: h-BN, or a-BN, or g-BN (that is, graphite boron nitride), Hexagonal boron nitride is absolutely smooth, and the friction coefficient between the powders is very low. Each layer of its atomic structure contai...
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