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The magical use of nano silicon carbide

Cubic silicon carbide, also known as β-SiC, belongs to the cubic crystal system (diamond crystal type), relative to the common silicon carbide powder α-SiC (black silicon carbide and green silicon carbide) has a unique advantage. Research shows that beta SiC powder with wear-resistant, high temperature resistant, heat resistant, corrosion resistance, radiation resistance, good conductive properties such as good performance, can be widely used in the high-grade refractory materials, special ceramics materials, grinding materials and advanced and reinforced material, and other [...]

Nanometer magnesium hydroxide for nanoscale materials

Nano magnesium hydroxide can also be used to save fertilizer? Recently in zhengzhou held a “nanometer magnesium hydroxide fertilizer application technology” scientific and technological achievements appraisal meeting, nanometer magnesium hydroxide fertilizer synergist recognized by experts, experts agree that the technology has obvious economic benefits and social benefits. By zhao yufen academician, director of the national committee of xiamen university, south China agricultural university professor liao and henan academy of agricultural science and technology ke-gang sun researcher, deputy director of the [...]

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, [...]

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 [...]

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 [...]

A preparation method and process of nano-sized dysprosium oxide

Rare earth oxides are widely used in magnetic materials, catalytic materials, hydrogen storage materials, optical glass, optical fiber and ceramic capacitors. Dysprosium oxide has excellent physical and chemical properties and is used as raw material for dysprosium metal, glass, additive for NdFeB permanent magnets, metal halogen lamps, magneto-optical memory materials, yttrium iron or yttrium aluminum garnet, and as control rods for nuclear power reactors in the atomic energy industry. With the development of science and technology, large specific surface [...]

Rare earth doped lutetium fluoride lithium on conversion nanomaterials

Its characteristic lies in: with oil Acid, oleylamine and octadecene as solvents were combined with lithium trifluoroacetate, lutetium trifluoroacetate and rare earth trifluoroacetate in an inert gas Under the protection, the temperature is heated to 100-130℃ and held for a period of time to dissolve the solid reactants; And then it’s added under inert gas protection After the thermal solution was heated to 280-330℃ for a period of time, the shell precursor was injected. After the thermal insulation and curing, [...]

Preparation of Europium oxide by plant precipitator

Europium oxide (Eu2O3) is used in the manufacture of fluorescent materials, laser materials, X-ray sensitized screen activators, and stimulated emission phosphors for new X-ray medical diagnostic systems. It can also be used to make colored lenses and optical filters, for magnetic bubble storage devices, control materials for atomic reactors, shielding materials and structural materials. Europium absorbs more neutrons than other elements, is used as neutron absorbing material in atomic reactors, and is used as raw material for the synthesis [...]

Nanoscience: Materials with good prospects

Researchers at the University of Konstanz have developed a method to synthesize europium oxide (II) nanoparticles, a ferromagnetic semiconductor associated with data storage and transmission Ferromagnetic semiconductors are promising functional materials for spintronics (spintronics). Spintronics is essential for the storage and transmission of information. The researchers also demonstrated that the magnetic properties of nanoparticles are given by their structure. The results of the joint research project have been published in the scientific journal Advanced Materials on 20 November 2017. The properties [...]

Production methods of holmium oxide and erbium oxide

Although the current use of holmium and erbium is still limited, some are equal to people’s further development, but it is certain that, with the development of science and technology, the application of holmium and erbium will be more and more widely, more and more people’s attention. At present, an important reason restricting the application of holmium and erbium is that it is very difficult to separate and purify the holmium and erbium, and the purification process is complex [...]