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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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Automotive materials are the foundation of automotive design, quality and competitiveness. Every breakthrough technological advancement must be accompanied by innovations in materials and processes. Among many new materials, graphene has strong conductivity, the hardest material, and ultra-high strength. , Ultra-high thermal conductivity, ultra-high light transmittance and other properties, are wi...
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With human beings, there are wars against viruses and bacteria. Although every time we end up with human victory, we have paid a heavy price. At present, the common PM2.5 masks on the market can only filter the particles with a diameter of 2.5 microns in the air, while the N95 mask can block 95% of the particles with a diameter of 2.5 microns in the air. At present, it is from Sars, influenza, Ebo...
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The application of nano magnesium oxide as an expansion agent in cement-based materials is as follows: when nano-magnesium oxide is used as an expansion agent in cement-based materials, the mixing mass of nano-magnesium oxide is 1% to the mass of cementitious materials in cement-based materials. 10%; The advantage of using nano-magnesium oxide as an expansion agent is that the size of the magnesiu...
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1. The field of nano-ceramics Nano-ceramics refer to ceramics whose crystal grain size, defect size, second phase distribution and other microstructures are all at the nanometer level. It is usually made of nano-titania, nano-zirconia, nano-magnesia, nano-alumina and other particles through high-temperature sintering or hot pressing. Its advantages are good superplasticity, greater strength and ha...
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Due to its small particles and large specific surface area, nano titanium nitride can be dispersed in other materials to form a conductive network, which greatly improves the conductive performance of the composite material. Therefore, nano-titanium nitride is a material with broad application prospects. Among them, the applications of nano-titanium nitride TIN in electrochemistry are as follows: ...
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The following describes the application of nano TIN titanium nitride in water electrolysis: 1) Application in hydropower analysis hydrogen electrode Since solid polymer electrolyte water electrolysis is an acidic environment, alternative materials represented by N-based multi-element alloys are only suitable for neutral and alkaline environments. Nano TiN can be a good carrier material due to its ...
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Nano cuprous oxide is a new type of P-type semiconductor material with active hole-electron pairs and good catalytic activity. Because of its unique properties, it has a wide range of applications in many fields. SAT NANO---Nano cuprous oxide (Cu2O) is a widely used photoelectric material, it is the oxide of monovalent copper, dark red powder. The particle size is 30-50 nanometers and the purity i...
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Vanadium dioxide (VO2) is a binary oxide with a strongly correlated electronic system. Due to the strong interaction of its internal electrons, orbits, crystal lattices and spins, local electronic and crystal structure changes caused by small external stimuli can be sufficient. Induce VO2 to undergo a reversible metal-insulator phase transition. Along with the phase change, the crystal structure, ...
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Objective: To prepare a polishing slurry of α-Al2O3 nanoparticles with good dispersion stability; to improve the chemical mechanical polishing performance of sapphire; Disperse α-Al2O3 in different dispersing media such as silica sol, cerium oxide sol, water, etc.; prepare a polishing slurry of α-Al2O3 nanoparticles under conditions of different pH, different silica sol concentration and silica so...
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In order to explore the ultraviolet protection performance of nanofibers, the ultraviolet shielding nano titanium dioxide (TiO2) was added to the polyacrylonitrile (PAN) solution, and pure PAN and composite PAN/TiO2 nanofiber membranes were prepared. Scanning electron microscopy and UV transmittance analysis were used. The instrument analyzed the microscopic morphology and UV protection performanc...
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Alumina ceramics is a structural ceramic material with a-Al2O3 as the main crystal phase. Because of its high melting point, high hardness, heat resistance, corrosion resistance, and electrical insulation characteristics, it can be used under harsher conditions . The price of alumina ceramics is low, and the production process is mature. It is currently one of the ceramic materials with the larges...
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