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Refractory materials refer to inorganic non-metallic materials with a refractoriness exceeding 1580°C. Refractoriness refers to the Celsius temperature at which the refractory cone sample resists the action of high temperature without softening and melting under no load. There are many types of refractory materials. According to the chemical characteristics, it can be divided into acidic refractor...
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Conductive glue is composed of non-conductive resin and conductive filler. Since epoxy resin has excellent mechanical and thermal properties, low shrinkage, good bonding ability, resistance to mechanical and thermal shock, and strong resistance to humidity, solvents and chemical reagents, epoxy resin The resin system conductive adhesive is the most researched. As the key material of conductive adh...
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The chemical reduction method of silver coated copper powder refers to the process of using a reducing agent to reduce the ions in the main salt to elemental form and depositing on the surface of the substrate with autocatalytic ability in a metastable solution system. When the reducing agent is oxidized on the catalytically active surface, free electrons are generated. These free electrons can re...
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Nano alumina has been widely used in the field of coatings due to its high hardness, high strength, good thermal stability, wear resistance, thermal conductivity, insulation and other excellent properties. Adding nano-alumina powder and nano-alumina dispersion to the coating improves the wear resistance of the coating and has a certain self-repairing ability, and at the same time increases the har...
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In recent years, with the development of science and technology, nanotechnology has begun to be applied to all aspects of our lives, and the fields involved are also increasing. Especially when this emerging technology meets our traditional industry ceramics, the combination of the two improves the product added value of the ceramic industry. Alumina ceramics have a series of excellent characteris...
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Nano alumina powder is widely used in chemical industry, medicine, catalyst and its carrier, ceramics and other fields because of its special properties. 1. In the application of ceramics, precision ceramics made of nano-alumina powder have the plasticity and toughness similar to metal, light weight, and greatly improved strength. Adding a small amount of micron or nano-alumina into the convention...
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1.Mechanism of nano-alumina in Refractory The application of nanotechnology in Refractory is mainly the application of nano-alumina. Because of its small size and large proportion of surface atoms, nano-alumina has high surface energy, high activity, instability and easy to combine with other atoms. Nano-alumina is mainly used in amorphous Refractory and some special Refractory. Adding nano-alumin...
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Nano powder has various applications in modern industry. One of them is added to printing inks and coatings to provide UV resistance. Because of its very small size and high specific surface area, nano powder can bring remarkable effect in a very small amount. So, what nano powders can be added to printing inks and coatings to play the role of UV resistance? This article will provide you with a br...
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What are the surface modification methods for alumina powder? Aluminum oxide, a common material, is commonly used in the production of ceramics, coatings, catalysts, etc. However, in some applications, such as filling composite materials or preparing high-performance catalysts, surface modification of alumina is required to improve its performance and stability. This article will discuss the surfa...
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In copper-clad laminates, spherical silicon micro powders with excellent fluidity can achieve high filling in the resin matrix of copper-clad laminates, thereby further reducing production costs, basic thermal expansion coefficients, and dielectric constants. One of the most commonly used systems for high-frequency copper-clad laminates is PTFE resin, which requires a high filling amount of filler...
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Although spherical silicon micro powder is spherical and has good fluidity, there are still problems of poor compatibility and difficult dispersion when used as an inorganic filler mixed with organic matrix materials. Therefore, surface modification is necessary to solve these problems. Surface modification of spherical silicon micro powder involves introducing specific functional groups or coatin...
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XRD is an important means of characterizing phases. Strictly speaking, it can determine the existence of a certain phase, but cannot determine the absence of a certain phase, making it easier to distinguish between truth and falsehood. So, what is its detection limit? Firstly, we must emphasize that XRD analysis of elemental content is very inaccurate. If we have to say what the detection limit is...
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