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顯示從 7月, 2021 起發佈的文章

New information on the use of ytterbium oxide Yb2O3 in 2021

  Overview of Ytterbium Oxide Yb2O3 Ytterbium oxide  has the chemical formula Yb2O3. The molecular weight is 394.08. The pure product is colorless powder, light brown or yellow when it contains thulium oxide. Slightly hygroscopic, absorb carbon dioxide from the air. The proportion is 9.2. The melting point is 2,346°C. It is the weakest one in the yttrium group except for lutetium oxide. It is insoluble in water and cold acid, but soluble in hot dilute acid. Ytterbium oxide is used in the manufacture of permanent magnet materials, glass, ceramic colorants, laser materials, heat shielding coating materials, electronic materials, battery materials, biopharmaceuticals, electronics industry and chemical research applications showing superior performance. With the development of science and technology, large particles of ytterbium oxide are used in coating, sputtering, vacuum coating and other fields. For example, ytterbium oxide is coated on the surface of diamond, which increases the infra

ITO, as a nano-indium tin metal oxide, has good conductivity and transparency

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  Overview of indium tin oxide ITO powder Indium tin oxide  is a mixture, transparent brown film or yellowish gray block, made of 0.9In2O3 and 0.1 SnO2. It is mainly used to make liquid crystal displays, flat panel displays, plasma displays, touch screens, electronic paper, organic light-emitting diodes, Solar cells, antistatic coatings, transparent conductive coatings for EMI shielding, various optical coatings, etc. The main characteristic of indium tin oxide is its combination of electrical conductivity and optical transparency. However, compromises need to be made in thin film deposition, because a high concentration of charge carriers will increase the conductivity of the material, but will reduce its transparency. Indium tin oxide thin films are most commonly deposited on the surface by physical vapor deposition or some sputtering deposition techniques. Because of the high price and limited supply of indium, the fragility and lack of flexibility of ITO layers, and the need for va

Gallium sulfide Ga2S3 is one of the materials for making two-dimensional ultra-thin semiconductors

  Overview of Gallium Sulfide Ga2S3 Powder Gallium sulfide Ga2S3  is a compound of sulfur and gallium, that is, a semiconductor with electronic and photon parts. The vulcanized ball (Ⅲ) slowly decomposes in moist air and releases hydrogen sulfide, which can be used as sulfate. The titration of gallium and thiolate is formed in a strong base. Ga2S3 is not proportional to the high temperature of non-chemical measurement of sulfide, while Ga4SX(4.8<=""span="">) Gallium sulfide (III) Ga2S3 has four polymorphs, α (hexagon), α'(monoolefin), β (hexagon) and γ (cubic). Alpha is yellow. The crystal structure is related to the positions of the four sides in Zns in Zns in Zns. The crystal form of gamma burned zinc ore (zinc mixture) is similar. To Application of Gallium Sulfide Ga2S3 Powder Gallium sulfide Ga2S3  is one of the materials for making two-dimensional ultra-thin semiconductors. Sulfides (Ga2S3) belong to a group of broadband semiconductors with infrared a

The physicochemical properties and production methods of iron oxide Fe3O4

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  Overview of iron oxide Fe3O4 Ferroferric oxide  is an inorganic substance with a chemical formula of Fe3O4. It is a magnetic black crystal, so it is also called magnetic iron oxide. It cannot be regarded as "ferrous ferrite" [Fe(FeO2)2], nor can it be regarded as a mixture of ferrous oxide (FeO) and iron oxide (Fe2O3), but it can be regarded as suboxide A compound composed of iron and iron oxide (FeO·Fe2O3). This substance is insoluble in water, alkali solutions, ethanol, ether and other organic solvents. The natural ferroferric oxide is insoluble in acid solution and is easily oxidized to iron oxide (Fe2O3) in the air in a humid state. Usually used as a pigment and polishing agent, it can also be used to make audio tapes and telecommunications equipment. Three oxides of iron: ferrous oxide (FeO), iron oxide (Fe2O3), and ferric oxide (Fe3O4). Ferric oxide is the only iron compound that can be magnetized in the middle school stage. Fe2+ and Fe3+ are contained in ferroferric

The difference between 316 stainless steel wire rope and 304 stainless steel wire rope

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  Overview of 304 stainless steel wire rope: 304 stainless steel wire rope  is a universal stainless steel material, and its anti-rust performance is stronger than that of 200 series stainless steel materials. High temperature resistance is also better, as high as 1000-1200 degrees. 304 stainless steel  has excellent corrosion resistance and good resistance to intergranular corrosion. For oxidizing acids, it is found in experiments that 304 stainless steel has strong corrosion resistance in nitric acid with a concentration ≤ 65 below the boiling temperature. It also has good corrosion resistance to alkaline solutions and most organic and inorganic acids. 304 stainless steel wire rope , 304 stainless steel wire 316 stainless steel wire, stainless steel wire rope are stainless steel containing molybdenum. The content of NI in 316 stainless steel is better than that of 304 stainless steel. The difference between 316 stainless steel wire rope and 304 stainless steel wire rope: 304 is a ver

Preparation method and application field of spherical quartz powder

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  Overview of Spherical Quartz Powder Spherical quartz powder  is purified and ultra-finely crushed from natural quartz stone. After a certain high temperature field, its phase, crystal and shape instantly change from solid to molten, and then from solid to crystalline (from crystallization to crystallization). A powder, from irregular angular particles to regular spherical particles. At present, its preparation methods usually include high temperature plasma melting method, high temperature melting spray method and gas combustion flame method. Spherical quartz powder has excellent properties such as smooth surface, large specific surface area, high hardness and stable chemical properties. First of all, the spherical powder has good fluidity and is evenly mixed with the resin to form a film. The resin addition is small, the quartz powder filling amount is high, and the mass fraction can reach up to 90.5%. The higher the filling amount of quartz powder, the lower the thermal conductivit

How to prepare chromium sulfide Cr2S3 powder?

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  Overview of chromium sulfide Cr2S3 powder Chromium sulfide powder  is an inorganic compound formulated as Cr2S3. Chromium sulfide is a brown-black solid, insoluble in water. Chromium sulfide (III) Cr2S3 powder is an inorganic compound with the molecular formula Cr2S3. Chromium sulfide is usually a non-stoichiometric compound with a molecular formula ranging from CRS to Cr0.67S (corresponding to Cr2S3). Chromium sulfide is usually a non-stoichiometric compound with a molecular formula of Crs to Cr0.67 (corresponding to Cr2S3). According to X-ray crystallography, chromium sulfide is a combination of nickel arsenide (stoichiometric ratio 1:1) and cadmium (OH) 2 (stoichiometric ratio 1:2). Some metal-metal bonds have a Cr-Cr distance of 2.78 A. How to prepare chromium sulfide Cr2S3 powder? Chromium sulfide  is a medium water-soluble and acid-soluble chromium source, compatible with sulfate. Sulfates are sulfates or esters formed by replacing one or two hydrogens with metals. Most metal s

Preparation method and application of magnesium nitride Mg3N2

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  Overview of magnesium nitride Mg3N2 Magnesium nitride  with the chemical formula Mg3N2 is an inorganic compound of magnesium and nitrogen, which is a greenish-yellow powder under normal temperature and pressure. Magnesium nitride is an inorganic compound composed of nitrogen and magnesium, with a molecular formula of Mg3N2 and a molecular weight of 100.9494. Belongs to the cubic crystal system. Like many metal nitrides, magnesium nitride reacts with water to form ammonia. To prepare magnesium nitride, the magnesium strip can be burned in nitrogen. Often used as a catalyst. Preparation of Magnesium Nitride Mg3N2 At present, the main methods for preparing magnesium nitride Mg3N2 include the direct reaction of magnesium powder with nitrogen, the reaction of magnesium with nitrogen in a nitrogen plasma stream, the explosion of magnesium coils in a nitrogen atmosphere, the low-pressure chemical vapor deposition method, and the self-propagating high-temperature synthesis method. , Nano-mag