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1. The world's first graphene car in Manchester came out July 22, the world's first use of graphene as a body material car debut in Manchester, by the Briggs car company in Liverpool. The BAC Mono sports car with graphene-added material has passed the road test and will be shown at the National Graphene Research Center in Manchester as part of the City Science Festival on July 22-29. "The graphene...
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Known as the "king of new materials", Graphene nanoparticles not only attracts the attention of the society in the fields of electronic products, new energy batteries, and aerospace, but is also regarded as the key to the next medical transformation in the medical field. Recently, the research team at the University of Olomouc in the Czech Republic announced the use of graphene to develop the worl...
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When the size of the nano-ferric oxide particles is reduced to the nanometer order, due to the small size effect, surface effect, quantum size effect and macroscopic quantum tunneling effect of the nanoparticles, it has a special difference from the conventional bulk materials. Magnetic properties. This also makes it have special applications in the fields of industry, biomedicine and so on. 1.Mag...
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Preparation of kerosene-based magnetic fluid of Fe3O4 In this experiment, analytically pure ferric chloride, ferric chloride and ammonia (NH3 content 25%) were used to prepare magnetic particles of Fe3O4 according to chemical coprecipitation method. The chemical reaction equation is 2FeCl3·6H2O+FeCl2·4H2O+8NH3·H2O= Fe3O4+8NH4Cl+24H2O (1) In the dissolution process, FeCl2·4H2O blue-green crystals a...
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1. What is tungsten disulfide powder? Ultrafine WS2 powder is a new type of lubricating and anti-wear material with excellent lubricating properties and its dry friction factor is only 0.03. Tungsten disulfide is one of the best raw materials for friction lubrication in the scientific community. Under static conditions, its dry friction factor is 0.07. Under dynamic conditions, the dry friction fa...
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1. Application of ultrafine copper powder on MLCC internal electrodes Copper has the advantages of small resistivity, small electromigration speed, and low price. It is an ideal substitute for silver-palladium internal electrodes, but its chemical properties are more active. In the air, powdery copper with large specific surface area is easily Oxidation, the surface will form a film of Cu2O and Cu...
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1. Overview of ultrafine powder 1.1 Definition of ultrafine powder There is no completely consistent statement about the particle size boundaries of ultrafine powders. Due to the difference in the use, preparation method and technical level of ultrafine powders in various countries and industries, the particle size of ultrafine powders is divided. For example, the particle size of ultrafine powder...
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Since ultrafine powder has surface effect, small size effect, quantum effect and macroscopic quantum tunneling effect, it has many special properties in catalytic, optical, magnetic and mechanical properties compared with crystalline materials of the same composition. There are many important applications in the fields of medicine, microelectronics, and nuclear technology. "Plasma milling" refers ...
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The purpose of surface modification of ultrafine powder is: 1. In order to improve or change the dispersibility of powder particles; 2. Improve durability, such as resistance, light resistance, heat resistance, weather resistance, etc.; 3. Improve particle surface activity; Adding new physical, chemical and mechanical properties and new functions to the surface of the particles to increase the add...
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The purpose of surface modification of ultrafine powder is: 1. In order to improve or change the dispersibility of powder particles; 2. Improve durability, such as resistance, light resistance, heat resistance, weather resistance, etc.; 3. Improve particle surface activity; Adding new physical, chemical and mechanical properties and new functions to the surface of the particles to increase the add...
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The purpose of surface modification of ultrafine powder is: 1. In order to improve or change the dispersibility of powder particles; 2. Improve durability, such as resistance, light resistance, heat resistance, weather resistance, etc.; 3. Improve particle surface activity; Adding new physical, chemical and mechanical properties and new functions to the surface of the particles to increase the add...
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First, capsule modification Capsule modification is a surface modification method in which a film of a uniform thickness and a film having a certain thickness is coated on the surface of the powder particles. Rong et al. encapsulated TiO2 composite particles coated with Al2O3 and SiO2 with polystyrene, which effectively improved the absorbance and stability of the material. Zhu Liqun and other met...
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