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According to different aggregation states, substances can be divided into steady state, unsteady state and metastable state. Generally, bulk materials are stable; particles with a particle size of about 2nm are unstable, and their structure is constantly changing when observed under a high-power electron microscope; and powders with a particle size of about micrometers are in a metastable state. T...
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1. The application of ultrafine copper powder on the inner electrode of MLCC Copper has the advantages of low resistivity, low electromigration speed, and high price. It is one of the ideal substitutes for silver-palladium internal electrodes, but its chemical properties are more active. In the air, powdered copper with a large specific surface area is easily Oxidation, a thin film of Cu2O and CuO...
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As a key member of non-metallic materials, ceramic materials have a large number of attractive properties, such as good mechanical and electrochemical properties, low thermal conductivity, dense and uniform structure, wear resistance and corrosion resistance, etc. The high specific stiffness, high specific strength and chemical inertness of ceramic materials in complex environments, and the low de...
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Many people think that graphite powder is carbon powder. In fact, there is still a big difference between graphite powder and carbon powder. Next, SAT NANO will introduce the difference between the two in detail; Toner generally refers to toner, which is widely used in printer cartridges. The main component of toner (also known as toner) is not carbon, but most of it is composed of resin and carbo...
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As one of the important parts of lithium ion batteries, the diaphragm can avoid the positive and negative electrode contact and promote the shuttle of lithium ions between the two electrodes. It does not participate in the electrochemical reaction, but determines the performance and safety of the battery. Inorganic ultrafine powder coating or composite modified polymer is one of the effective meth...
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Nano sized hydroxyapatite has stable performance under physiological environment, and its ability to induce new bone formation is unmatched by other materials. It is widely used in human bone bionic regeneration materials and hydroxyapatite coatings. Bone is the stent of the human body, participates in the metabolism of the whole body, and is an important part of the human movement system. However...
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Car intake manifold solution 1. The accuracy is +/-0.1mm, and the layer thickness of 0.02 fully meets the requirements of dimensional design verification 2. Using PA3200 nylon mixed glass fiber material, it has high strength, high toughness, and high temperature resistance, which fully meets the requirements of functional design verification 3. All parts are produced and printed at one time, no sp...
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The singular properties of nanomaterials include: ①Surface effect The surface area of a spherical particle is proportional to the square of the diameter, and its volume is proportional to the cube of the diameter, so its specific surface area (surface area/volume) is inversely proportional to the diameter. As the particle diameter becomes smaller, the specific surface area will increas...
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Copper powder is inexpensive and has a wide range of uses. Recently, many customers have inquired about copper powder, so how to choose copper powder? What kind of copper powder is more appropriate? The key is to look at the required performance and application. Commonly used copper powders can be roughly divided into spherical and quasi-spherical copper powders, dendritic copper powders, flake co...
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Because nano copper oxide CuO is a p-type semiconductor, it has holes (CuO) +, which may interact with the environment and play an antibacterial or antibacterial effect. Studies have shown that nano CuO has good antibacterial ability against pneumonia and Pseudomonas aeruginosa. The antibacterial process of metal oxide nano-copper oxide CuO can be simply described as: under the excitation of light...
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In recent years, silver coated copper powder has been widely used, not only as the electrode of chip electronic components, but also in the fields of catalyst and electronic paste. At present, the electronic paste used in my country is basically micron-level pure silver powder, which is expensive and mainly imported. Micron sterling silver powder has the problem of particle sedimentation in the la...
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Nanoparticles have a special surface structure, which lacks adjacent coordinating atoms on the surface, and has high activity, so it is easy to agglomerate. Due to the strong self-absorption property among nanomaterial particles, the agglomeration of nanoparticles is inevitable. Aggregates can be divided into two types: hard agglomerates and soft agglomerates. The formation process of agglomerates...
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