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Objective: To prepare a polishing slurry of α-Al2O3 nanoparticles with good dispersion stability; to improve the chemical mechanical polishing performance of sapphire; Disperse α-Al2O3 in different dispersing media such as silica sol, cerium oxide sol, water, etc.; prepare a polishing slurry of α-Al2O3 nanoparticles under conditions of different pH, different silica sol concentration and silica so...
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In order to explore the ultraviolet protection performance of nanofibers, the ultraviolet shielding nano titanium dioxide (TiO2) was added to the polyacrylonitrile (PAN) solution, and pure PAN and composite PAN/TiO2 nanofiber membranes were prepared. Scanning electron microscopy and UV transmittance analysis were used. The instrument analyzed the microscopic morphology and UV protection performanc...
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Alumina ceramics is a structural ceramic material with a-Al2O3 as the main crystal phase. Because of its high melting point, high hardness, heat resistance, corrosion resistance, and electrical insulation characteristics, it can be used under harsher conditions . The price of alumina ceramics is low, and the production process is mature. It is currently one of the ceramic materials with the larges...
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Copper oxide powder is a brown-black metal oxide powder with a wide range of uses. Copper oxide is a multifunctional fine inorganic material with a wide range of uses, mainly used in the fields of printing and dyeing, glass, ceramics, medicine and catalysis. It can be used as a catalyst and catalyst carrier and electrode activation material, and also as a rocket propellant. As the main component o...
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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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Primary particle size parameters of nano copper oxide:20nm, 50nm, 100 nanometers, purity 99% Min. Application of nano copper oxide: 1. Nano copper oxide is an important multifunctional inorganic material, which is widely used in printing and dyeing, ceramics, glass and medicine and other fields. 2. Nano-copper oxide can also be used as a burning rate catalyst for rocket propellants. It can no...
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Nanomaterials exhibit many exotic properties that traditional materials do not have. The first thing we need to know is that the nanometer (mainly refers to less than 100nm) of the composition of nanomaterials has four major effects: 1. Small size effect The boundary conditions of the crystal periodicity are destroyed; the atomic density near the surface layer of the amorphous nanoparticle decreas...
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Characterization and testing technology is the fundamental way to scientifically identify nanomaterials, understand their diverse structures, and evaluate their special properties. The main purpose of characterization of nanomaterials is to determine some physical and chemical properties of nanomaterials, such as morphology, size, particle size, chemical composition, crystal structure, band gap an...
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Characterization and testing technology is the fundamental way to scientifically identify nanomaterials, understand their diverse structures, and evaluate their special properties. The main purpose of characterization of nanomaterials is to determine some physical and chemical properties of nanomaterials, such as morphology, size, particle size, chemical composition, crystal structure, band gap an...
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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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The sintering of materials involves at least two processes: densification of the body and growth of grains in the body. The longevity of grains is usually achieved through the movement of grain boundaries. According to the classical theory of grain growth kinetics, the difference in free energy between the two sides of a curved grain boundary is the driving force that causes the interface to move ...
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