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In building energy conservation, the light transmission and heat insulation of glass is a very critical issue. In buildings with transparent ceilings and large-area exterior windows, the thermal radiation of sunlight will lead to an increase in the energy consumption of air conditioners, resulting in a large energy waste. In order to improve this phenomenon, nano-scale antimony doped tin oxide ATO...
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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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The synthesis of boron nitride by nitridation with boron anhydride (B4O3) is one of the important methods for industrial production of boron nitride. Due to the low melting point of boron anhydride (glass state is 294°C, crystalline state is 450-600°C), it becomes a high-viscosity melt at the nitriding temperature, which hinders the flow of ammonia and makes the reaction slow and extremely incompl...
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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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Nano thermal insulation coatings can be used to absorb ultraviolet rays from sunlight, and are often used in current decoration buildings. Water-based nano transparent thermal insulation coating not only has the effect of high efficiency and energy saving, but also has the comprehensive advantages of green environmental protection, health and safety. As an alternative product of solvent-based glas...
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The promotion and application of energy-saving technologies has reached a consensus in the world, and many countries have successively issued policies. In building energy consumption, a large proportion is lost through glass doors and windows. Similarly, in the hot summer, the exposure of sunlight through the car glass is unbearable for drivers and passengers, which accelerates the aging of the ve...
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ICP-MS Inductively Coupled Plasma Mass Spectrometer is an analytical instrument that combines ICP technology and mass spectrometry. It can simultaneously measure dozens of trace elements. The instrument covers a wide range of elements, including alkali metals, alkaline earth metals, transition Metals and other metalloids, rare earth elements, most halogens and some non-metallic elements. Principle...
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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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Boron carbide, also known as black diamond, is an inorganic substance with a chemical formula of B4C, usually a gray-black micropowder. It is one of the three hardest known materials (after diamond and cubic boron nitride) and is used in tank armor, body armor and many industrial applications. It has a Mohs hardness of about 9.5. Black glossy crystals. The hardness is lower than that of industrial...
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1 Modified high-strength new material Nano SiC powder particles have good compatibility in polymer composite materials, good dispersion and good basic bonding, the tensile strength of modified high-strength nylon alloy is more than 100% higher than that of ordinary PA6, and the wear resistance is improved by more than 2.5 times. Users have responded well. It is mainly used for polymer parts of arm...
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