Yearly Archives - 2021

15 3月

Preparation of hexagonal flake nano magnesium hydroxide materials

Magnesium hydroxide is a kind of green, low-cost and environment-friendly inorganic additive flame retardant. It has the advantages of good thermal stability and non-toxicity. It can be widely added to polymer materials such as plastics, rubber and coatings to improve their flame retardant properties. However, the hexagonal flake-like nanometer magnesium hydroxide material with small particle size and low surface polarity has good dispersibility and nanometer activity. In the case of almost no impact on the use of strength, can [...]

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09 3月

Application and prospect of boron nitride nanomaterials

The purpose of preparation and characterization of boron nitride nanomaterials is to improve the properties of traditional boron nitride materials, give full play to their various effects at the nanoscale level, achieve expected excellent properties and expand new application fields. 1, boron nitride coating has obvious chemical inertia at high temperature, so that boron nitride coating can be used to protect aluminum, magnesium, zinc alloy and other materials from high temperature oxidation. When coated with refractory or ceramic ware, [...]

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03 3月

Hafnium carbide ceramic material additive

At present, the method of synthesis of hafnium carbide at home and abroad is not much reported, the original method, generally need to be above 1900℃ to react, high energy consumption, high requirements for equipment, and grow out of the particle size, need to use other methods to reduce the reaction temperature. (2) Liquid phase precursor conversion method. Wang Yanbin et al. used HfoCl2, HCl, HNO3, n-propanol, isopropanol, ethanol, acetyl and other HFC powders with sizes ranging from tens [...]

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23 2月

Preparation of high purity praseodymium chloride anhydrous by programmed temperature rise method

The purpose of the invention is to provide a program speed temperature control the preparation of high purity anhydrous praseodymium chloride or neodymium chloride, the method in the industrial scale of high purity anhydrous praseodymium chloride or neodymium chloride products, including water content is less than 0. 1%, the product is added to water dissolved immediately, dissolved after solution clear transparent, product purity is more than 99%, the yield more than 99%. Technical solutions will directly out of the [...]

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09 2月

Application of praseodymium fluoride

Praseodymium metal (PR) material is one of the products of light rare earth metals. Because of its unique physical and chemical properties, it has been widely used in the fields of rare earth permanent magnets, hydrogen storage materials, non-ferrous metals and alloys, ignition alloys, steel and iron, and has a promising prospect. In the middle of the 1950s, China began to develop metal praseodymium. In the 1960s, the metal gradually went into industrial production, and a small quantity of [...]

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26 1月

Applications of Titanium Silicide Carbide Ti3SiC2 layered ceramic materials

(1) biomedical applications In dentistry, materials or components used in the oral environment are required to withstand oxidation for a long time. Maintain stability, but also need to have good machinability and plasticity. Ti3SiC2 is an existing ceramic material It has metal properties and good biocompatibility, which makes it possible to be used in human body. Ti3SiC2 can be machined to precisely sized threads and can be made into implants without lubricant Or prosthesis and so on in oral medicine clinical application. Elastic [...]

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