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Transmission Electron Microscope (TEM) Transmission electron microscopy uses an electron beam that penetrates a sample to image, which requires the sample being observed to be "transparent" to the incident electron beam. Transmission electron microscopy is widely used in materials science and biology. Since electrons are easily scattered or absorbed by objects, the penetration is low, and the dens...
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In summer, the sun is strong, and the sunlight enters the room through the glass, causing the temperature in the car to rise sharply, which seriously affects the comfort of living and vehicle riding. Among them, the energy in the infrared band accounts for the largest proportion, and it is also the main source of energy for the temperature increase in the place where the sunlight is irradiated. By...
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Glass thermal insulation coating is a kind of coating prepared by one or more nano powder materials. The nano materials used have special optical properties, that is, they have high blocking rate in the infrared region and ultraviolet region. , has a high transmittance in the visible region. Using the transparent and heat-insulating properties of the material, it is mixed with an environmentally f...
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In the world of electronic materials there are two important material properties "electrical conductivity" and "thermal conductivity". Generally speaking, as long as the electrical conductivity of the material is good enough, the thermal conductivity is also good. For example, copper, silver, aluminum and other metal materials have good electrical and thermal conductivity. Therefore, most metal ma...
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In the process of powder storage, transportation and use, it is often hoped that the nano-aluminum powder exhibits low activity and is less affected by external environmental factors (temperature, humidity, etc.), so that the product has stable performance for a long time. On the other hand, it is desirable to exhibit high activity in solid rocket propellants to obtain high energy release rate and...
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The formation of a stable dispersion system, in addition to using electrostatic repulsion, that is, the negative charges adsorbed on the surface of the particles repel each other, to prevent the adsorption/aggregation between particles and finally form large particles and stratify/settlement, but also use. The theory of the steric hindrance effect, whereby particles that have adsorbed negative cha...
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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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According to the pH range, the transparent dispersion of nano-silica can be divided into basic transparent dispersion of nano-silica (PH=8-11), neutral transparent dispersion of nano-silica (pH=6-8) and acidic transparent dispersion of nano-silica (pH=1-5). SAT NANO adopts a special process and dispersion process to prepare a series of nano-silica transparent dispersion products with good dispersi...
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The main uses of nanomaterials: pharmaceuticals, household appliances, electronic computers, and the electronic industry, environmental protection, textile industry, and machinery industry. Nanotechnology is the core technology in the development of automobiles. Nanotechnology can be applied from car bodies to wheels, covering almost all of cars. The widespread application of nanotechnology in aut...
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1. Mechanical properties Due to the fact that nanomaterials are composed of nanoparticles, and when the particles are at the nanoscale, the strength, hardness, and other mechanical properties of the material will increase as the particle size decreases. It is precisely because of this property of nanomaterials that they can be used for certain packaging that requires strength and hardness, solving...
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Introduction: In recent years, the use of nanotechnology in thermal insulation materials has gained significant attention in the field of material science. Nanoparticles with unique physical and chemical properties have become an attractive alternative to bulk materials for providing thermal insulation. In this article, we will discuss the commonly used nanoparticles as thermal insulation material...
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The preparation of SEM nano powder samples usually requires the following steps: Sample preparation Firstly, it is necessary to choose an appropriate sample preparation method. Usually there are physical methods, chemical methods, biological methods, mechanical methods, etc. Among them, the most common methods are magnetron sputtering, chemical reduction, aerosol, etc. Sample dispersion It is also...
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