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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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The organic/inorganic nanocomposite formed by dispersing the inorganic filler in a nanometer size in a general plastic matrix is called nanoplastic. In nanocomposites, nano-plastics have excellent properties such as high strength, heat resistance, high barrier properties, flame retardancy and excellent processability due to the nano-size effect of the dispersed phase, large specific surface area a...
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The addition of nano SiO2 powder as an admixture to cement-based materials can improve many of the properties of cement-based materials. A large number of research results show that adding appropriate amount of SiO2 nanopowder to cement-based materials, due to the volcanic ash effect of nano SiO2 particle, nucleation effect and micro-filling effect, can significantly improve the early strength of ...
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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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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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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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New energy vehicles, communications and portable devices require lithium-ion batteries for high capacity and high endurance. Lithium-ion batteries urgently need to be updated to increase capacity, cycle and size. At present, the silicon-carbon negative electrode of lithium battery is all kinds of carbon materials mainly composed of graphite, and its theoretical capacity is only 372 mAh/g. In pract...
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First, the advantages of yttria stabilized zirconia YSZ Common zirconia stabilizers are usually alkaline earth oxides or rare earth oxides such as cerium oxide, cerium oxide, calcium oxide, magnesium oxide. The stability of these stabilizers to stabilize zirconia is roughly similar, but the performance is different. In application, yttria doped zirconia has good comprehensive properties and is the...
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Silicon nitride Si3N4 is a non-oxide high temperature ceramic structural material. Powdered Si3N4 can be prepared by reacting a mixture of SiCl4 vapor and NH3 gas. Powdered Si3N4 is unstable to air and water. Powdered Si3N4 can form a pungent odor, a gas commonly used as a refrigerant and a poorly soluble acid when it is in contact with water. Powdered Si3N4 can generate N2 and contact with air. a...
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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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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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Titanium is a chemical element, chemical symbol Ti, atomic number 22, located in the fourth cycle of the chemical periodic table, group IVB. It is a silver-white transition metal characterized by light weight, high strength, metallic luster and resistance to wet chlorine gas. The most common compound of titanium is titanium dioxide, which can be used to make white pigments. In the past, people use...
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