Advanced Nano Material

  Cadmium sulfide   can be prepared by precipitation from soluble cadmium (II) salts and sulfide ions. This reaction has been used for gravimetric analysis and qualitative inorganic analysis.  Industrial cadmium mines are immersed in cadmium sulfate with sulfuric acid, adjusted to pH=3.5, and then precipitated with sodium sulfide, the pH value should not be too low. The production of pigments usually includes the precipitation of CDS, washing of solid precipitates to remove soluble cadmium salts, then calcination (roasting) to convert them into hexagons, and then grinding to produce powder. When cadmium selenide sulfide is required, CdSe and CDS will co-precipitate, and cadmium selenide will be produced during the calcination step. Cadmium sulfide is an inorganic substance with a chemical formula of CDS. It can be used to make fireworks, glass glazes, enamels, luminescent materials, and pigments. High-purity cadmium sulfide is a good semiconductor, has a strong photoelectric effect on

  Due to the special process, when the molten iron is rapidly cooled to the iron sheet, its internal structure changes. The original ordinary molten iron becomes nano-materials. The "iron sheet" or "iron wire" obtained after the final cooling is not only in appearance Great changes have taken place, and there are also qualitative leaps in properties such as electromagnetic properties and ductility. This "nano-iron paper" is extremely thin, and data shows that the thickness is only tens of microns, and it can be torn apart as easily as paper. Experts explained that in order to roll ordinary steel to this thickness under normal conditions, it would have become a "wire mesh". And this "nanocrystalline iron paper" not only can easily reach this thickness, but also feels smooth to the touch. Although it looks no different from cellophane, it is shiny, but it is extremely sharp. With a gentle pull, the paper is cut in half, simply neat. Becau

  Overview of chromium nitride CrN powder Chromium nitride  is called CrN powder. Chromium nitride has good corrosion resistance and oxidation resistance. Using cathodic arc plasma deposition technology. Cathodic arc plasma deposition is a relatively new thin film deposition technology, similar to ion deposition technology in many respects. Its advantage is that it has a high ionization rate in the emitted particle stream, and these ionized ions have a high kinetic energy (40-100eV). Cathodic arc plasma deposition embodies many advantages of ion beam deposition, such as enhanced adhesion, increased density of states, and high reaction rate of composite film formation. Cathodic arc plasma deposition has its unique advantages, such as deposition on a more complex shape substrate, high deposition rate, good coating uniformity, low substrate temperature, and easy preparation of ideal compound or alloy chemical ratio. The evaporation of the cathode material through the evaporation process i

  Overview of Nano Bismuth Powder Nano-bismuth particles  are metal nanoparticles. Depending on the size of the particles, the color varies from dark gray to black. The newly produced bismuth is a silvery, crystalline, brittle metal, usually pink in the air. Bismuth is the most diamagnetic element, and its thermal conductivity is lower than any metal except mercury. It has high resistance and the highest Hall coefficient. The micro-nano bismuth powder is prepared by vapor phase evaporation and condensation method, with high purity, high sphericity, small bulk density, uniform particles, narrow distribution range, large specific surface area, high surface activity, spherical shape, good dispersion, high oxidation temperature, sintering Good shrinkage. Application of nano bismuth powder 1. Nano metal lubricating additives: add 0.1~0.5% micro-nano bismuth powder to the lubricating grease to form a self-lubricating and self-repairing film on the surface of the friction pair during the fric

Overview of germanium oxide GeO2 powder Germanium oxide GeO2  is also called germanium dioxide. Germanium dioxide is an inorganic compound with the molecular formula GeO2, which is the dioxide of germanium and has the same electronic form as carbon dioxide. Germanium dioxide, also known as germanium oxide, germanium, and germanium salt, is an inorganic compound. It is the main commercial source of germanium. When pure germanium comes into contact with oxygen in the atmosphere, it also forms a passivation layer. The germanium dioxide GeO2 powder is white powder or colorless crystal, and it has two systems: hexagonal (stable at low temperature) and insoluble tetragonal (tetragonal). The transition temperature is 1033℃. Germanium dioxide is mainly used in the production of metallic germanium, but also in spectroscopy and semiconductor materials.  The properties of germanium dioxide GeO2 Germanium dioxide  is an inorganic compound with the molecular formula GeO2, which is the dioxide of ge

  Overview of  Magnesium oxide MgO powder Magnesium oxide  is an inorganic substance, the chemical formula is MgO, which is the oxide of magnesium, an ionic compound. It is a white solid at room temperature. Magnesium oxide exists in nature in the form of magnesite and is the raw material for magnesium smelting. Magnesium oxide is a magnesium mineral supplement that is mainly made of magnesium -- in fact, it contains more magnesium than other magnesium supplements. Magnesium oxide is made by burning magnesium with pure oxygen, but this method is expensive. Magnesium oxide is a white hygroscopic solid mineral, naturally formed magnesite, is the source of magnesium. It consists of a lattice of Mg2+ ions and O2 - ions held together by ionic bonds. Magnesium hydroxide is formed in the presence of water (MgO + H2O→Mg(OH)2), but the formation of magnesium hydroxide can be reversed by removing water by heating. Magnesium oxide has high fire resistance and insulation properties. After 1000℃ ab