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With the continuous development of science and technology, electromagnetic waves are more and more widely used in life. Among them, the electromagnetic wave frequency of 1 ~ 20ghz is widely used in wireless communication, high-frequency circuit components and other related fields. Due to the application of absorbing materials in EMI and RCS, absorbing materials are getting more and more attention,...
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1. Application of Nano Iron Oxide in Decoration Materials In pigments, nano-iron oxide is also called transparent iron oxide (iron penetration). The so-called transparency does not specifically refer to the macroscopic transparency of the particles themselves, but refers to the dispersion of pigment particles in the organic phase to make a layer of paint film (or oil film). When light is irradiate...
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Graphene quantum dots are quasi-zero-dimensional nanomaterials, and their internal electrons are restricted in all directions, so the quantum confinement effect is particularly significant and has many unique properties. This may bring revolutionary changes in the fields of electronics, optoelectronics and electromagnetics. Used in solar cells, electronic equipment, optical dyes, biomarkers and co...
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Precious metals refer to some rare and expensive metal materials, such as silver, gold, ruthenium, rhodium, palladium, platinum, iridium and other expensive metals. Nanomaterials refer to materials at the nanometer level on one-dimensional or multi-dimensional scales, such as nanowires and nanoparticles. Noble metal nanoparticles are nanomaterials composed of these noble metals, such as gold nanop...
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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 Zirconium carbide is used in cemented carbide Zirconium carbide is an important high-temperature structural material with high melting point, high strength and corrosion resistance. It can improve the strength and corrosion resistance of cemented carbide. Its excellent characteristics make it have a lot of application space in cemented carbide. Using zirconium carbide instead of expensive tantal...
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With the rapid development of industry, a large number of pollutants are discharged into the environment, causing many environmental problems, such as soil, water and air pollution, which poses a great threat to the ecological environment and human health. In recent years, with the rise and development of nanotechnology, various nanomaterials have been widely used in the treatment of environmental...
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Advantages of nano ferroferric oxide black magnetic powder: 1. Nano Iron oxide black magnetic powder has the characteristics of high permeability, low coercivity and low remanence; 2. Nano Fe3O4 black magnetic powder has good dispersibility, is not easy to agglomerate, and has strong magnetism; 3. One-dimensional nano ferroferric oxide black magnetic powder has good magnetic permeability and good ...
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(1) Black nano Fe3O4 iron oxide: Size: 30nm, PH: 8-10, SSA:4-5g/cm3 Black nano ferroferric oxide is a mixed valence oxide of iron with a melting point of 1597°C. It is insoluble in water but soluble in acid solutions. Vk-EF01 has anti-corrosion effect. For example, the bluing of steel parts (also known as blue-burning and baking blue) is to use the oxidation effect of alkaline oxidizing solution t...
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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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Under the situation of rapid development of science and technology, to prepare high-temperature, high-performance, new-type materials, the first thing to do is to solve the refractory materials needed in the preparation process. The characteristics of refractory materials are as follows: 1. Mechanical properties The elastic modulus of special refractory materials is large. Most have higher mechani...
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1. The advantages of yttria stabilized zirconia YSZ Common zirconia stabilizers are usually alkaline earth oxides or rare earth oxides, such as yttrium oxide, cerium oxide, calcium oxide, and magnesium oxide. The essence of these stabilizers to stabilize zirconia is roughly similar, but the performance is different. In application, yttria-doped zirconia has good comprehensive properties, and is al...
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