The particle size of nano-level silver powder is usually between 20nm and 100nm. The performance of nano-silver powder is directly related to the particle size. The study found that the smaller the particle size, the higher the valence state, and the stronger the bactericidal performance. What are the important factors affecting the performance of nano-silver powder? Common metal activity sequence...
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The preparation methods of CNTS loaded metal nanoparticles are mainly physical preparation and chemical preparation methods. The most commonly used is chemical preparation method. The chemical preparation method is generally uniformly loaded with metal nanoparticles on the carrier CNTS. The general process of chemical preparation is that the metal front drive is restored to atoms, and the metal at...
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How to dilute nano silver dispersion from high concentration to low concentration? How much deionized water should be added? Nano silver dispersion is an important nano material with various applications such as sterilization and anti-corrosion. When using this material, it is sometimes necessary to dilute the high concentration dispersion to obtain the desired low concentration. So how should dil...
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Copper powder and copper alloys powder have excellent physical and chemical properties, such as high conductivity, thermal conductivity, and corrosion resistance, and are widely used in the power industry, thermal management systems, nuclear power plants, and aerospace industry. High strength, wear-resistant, and corrosion-resistant copper alloys are used for automotive parts and daily necessities...
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The ideal characteristics of silver coated copper powder largely depend on the perfection and consistency of the silver coating at the microscopic level. High quality silver coated copper powder is a prerequisite for realizing its application value. The core goal and difficulty of the preparation process is to achieve uniform, dense, continuous, and thickness controllable silver layer coverage on ...
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Silver paste resistance is influenced by multiple factors, and in addition to the shape of silver powder, the following key factors also significantly affect its conductivity: 1、 Characteristics of silver powder itself The particle size and distribution of silver powder directly affect the resistance. When the particle size of silver powder decreases from 5 μ m to 1 μ m, the specific surface area ...
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First、 Physical Law Physical methods can usually prepare copper powder with high purity and good sphericity. 1.Atomization method Aerosolization method: using high-pressure inert gas, the resulting powder has low oxygen content and good sphericity, but the cost is relatively high. Commonly used in high-performance powder metallurgy and 3D printing of metal powders. Water atomization method: using ...
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The demand for conductive paste in the photovoltaic industry and electronic packaging field is undergoing a transformation from high silver content to low silver or even silver free. Although silver powder has excellent conductivity and chemical stability, it is expensive, has limited resources, and is prone to electromigration. In contrast, copper's conductivity is second only to silver and its c...
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