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1 Zirconium carbide is used in cemented carbide Zirconium carbide is an important high-temperature structural material with high melting point, high strength and corrosion resistance. It can improve the strength and corrosion resistance of cemented carbide. Its excellent characteristics make it have a lot of application space in cemented carbide. Using zirconium carbide instead of expensive tantal...
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Silicon carbide whiskers are cubic whiskers and belong to the same crystal type as diamond. It is the whisker product with the highest hardness, the highest modulus, the highest tensile strength, and the highest heat-resistant temperature among the whiskers that have been synthesized. There are two forms of α type and β type, and the performance of β type is better than that of α type. Type β has ...
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The beta silicon carbide whiskers produced by SAT NANO are needle-shaped cubic crystals. As an atomic crystal, it has low density, high melting point, high strength, high modulus, low thermal expansion rate, and excellent properties such as wear resistance, corrosion resistance, high temperature resistance, and oxidation resistance. It is mainly used for metal substrates and ceramic substrates. , ...
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As a new material of the technological revolution, ceramic materials have attracted the attention of some developed countries as early as more than ten years ago. The fatal shortcomings of ceramic materials are its brittleness, low reliability and low repeatability. These shortcomings have seriously affected the application range of ceramic materials. Only by improving the fracture toughness of ce...
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Copper powder is inexpensive and has a wide range of uses. Recently, many customers have inquired about copper powder, so how to choose copper powder? What kind of copper powder is more appropriate? The key is to look at the required performance and application. Commonly used copper powders can be roughly divided into spherical and quasi-spherical copper powders, dendritic copper powders, flake co...
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Nanoparticles have a special surface structure, which lacks adjacent coordinating atoms on the surface, and has high activity, so it is easy to agglomerate. Due to the strong self-absorption property among nanomaterial particles, the agglomeration of nanoparticles is inevitable. Aggregates can be divided into two types: hard agglomerates and soft agglomerates. The formation process of agglomerates...
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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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This is a method of synthesizing boron nitride by reacting borax and ammonium chloride as the main raw materials in an ammonia atmosphere. The two raw materials should be dehydrated and recrystallized separately before participating in the reaction. Borax is best dehydrated in a vacuum at 200~400°C. The recrystallization of ammonium chloride is to dissolve it into a saturated solution, filter to r...
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The synthesis of boron nitride by nitridation with boron anhydride (B4O3) is one of the important methods for industrial production of boron nitride. Due to the low melting point of boron anhydride (glass state is 294°C, crystalline state is 450-600°C), it becomes a high-viscosity melt at the nitriding temperature, which hinders the flow of ammonia and makes the reaction slow and extremely incompl...
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Boron carbide, also known as black diamond, is an inorganic substance with a chemical formula of B4C, usually a gray-black micropowder. It is one of the three hardest known materials (after diamond and cubic boron nitride) and is used in tank armor, body armor and many industrial applications. It has a Mohs hardness of about 9.5. Black glossy crystals. The hardness is lower than that of industrial...
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