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  • 23

    Oct

    How to prepare ferroferric oxide magnetic fluid in the laboratory

    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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  • 25

    Nov

    What is copper nanowire and what is its application

    Transparent conductive films are an important part of many optoelectronic devices, such as flat panel displays, organic solar cells, organic light emitting diodes (OLEDs), smart windows, and the like. Indium tin oxide (ITO) has become the main material of transparent conductive films due to its high electrical conductivity and light transmittance. However, ITO also has some disadvantages, such as ...
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  • 29

    Nov

    Guidelines for the use of silicon carbide whiskers

    1)Silicon carbide whiskers should be pre-dispersed as much as possible before use. They should be mechanically and ultrasonically dispersed with water, ethanol, etc., and then mixed with the matrix material. 2) The amount of silicon carbide whiskers added to the material is not as high as possible, and there is usually an optimum value. Ordinary ceramics are generally added in an amount of 1-10%. ...
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  • 11

    Jan

    What is boron nitride coating and how to use it?

    BN-SAT08 High-temperature Release Agent Product Characteristics Environment Friendly: Boron nitride is environmentally friendly, non-toxic, non-polluting Chemical Properties:  Strong non-stick properties in high temperature environment, stability in high temperature Physical Properties: Electrical insulator, low dielectric constant, good thermal conductivity and high lubricity Product Fe...
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  • 24

    Jan

    Have you seen 5 ceramic powders for 3D printing ceramic technology?

    First, powder materials are the key to 3D printing ceramic technology Additive manufacturing (3D printing) is known as the third industrial revolution. For ceramic materials, the properties of raw material powders (such as purity, particle size and distribution, particle morphology, etc.) have a direct impact on the performance of ceramics. . Ideally, the components are characterized by fine contr...
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  • 04

    Mar

    B-SIC Cubic Silicon Carbide Powder Introduction and Application

    Cubic silicon carbide, Beta SiC, is a synthetic high-performance material (only a small amount of high-purity cubic silicon carbide exists in nature). It is called "cube" because its structure belongs to the cubic system (diamond crystal). This structure also determines its own superior physical and chemical properties. B-SiC has a Mohs hardness range of 9.5 to 9.75, which is close to the most Moh...
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  • 11

    Mar

    What is the difference between Alpha SiC and Beta SiC in silicon carbide powder?

    Pure silicon carbide powder is a colorless, transparent crystal. Industrial silicon carbide is light yellow, green, blue or even black due to the type and content of impurities contained in it. The transparency varies with its purity. The crystal structure of silicon carbide is divided into hexagonal or rhombohedral α-SiC and cubic β-SiC (called cubic silicon carbide). Since α-SiC constitutes...
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  • 11

    Apr

    The role of nano SiC powder deposited on the surface of metal alloy parts

    The silicon carbide nanopowder has high purity, small particle size distribution range and high specific surface area; nano-silicon carbide has stable chemical properties, high thermal conductivity, small thermal expansion coefficient, high hardness and Mohs hardness of 9.5. Nano silicon carbide wear-resistant, high temperature resistant, corrosion resistant, acid and alkali resistant solvents. 1....
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  • 19

    Jul

    Overview of Preparation of Ultrafine Powder by Several Plasma Methods

    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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  • 15

    Aug

    surface coating modification method of ultrafine powder material

    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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  • 28

    Aug

    Surface chemical modification method of ultrafine powder material

    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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  • 29

    Sep

    What is silicon carbide whiskers and its application

    Silicon carbide whiskers are a kind of single-crystal fiber with a certain length-to-diameter ratio, which has very good high temperature resistance and high strength. It is mainly used in toughening applications where high temperature and high strength applications are required. Such as: aerospace materials, high-speed cutting tools. At present, it has a very high performance-price ratio. Silicon...
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