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Carbon nanotechnology began in the 1990s, and its presentation has greatly improved and improved the national economy. Its internal structure is of a hierarchical type and can exhibit special chemical properties in the field of catalysis and devices. At the same time, new nanomaterials appear after graphene and nanotubes, and new carbon nanomaterials have become a hot topic in many research fields...
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ZrB2 ceramic materials have extremely high melting point, strength, hardness and electrical conductivity (and the temperature coefficient of conductivity is positive), as well as a low coefficient of thermal expansion. In addition, they have good chemical stability, flame retardancy, heat resistance, corrosion resistance and Lightweight and other special properties, so it is very widely used. 1.1 ...
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Nano cerium oxide CeO2 additives can improve the microstructure of alumina-based ceramics, which is conducive to the densification of materials, and improves mechanical properties and thermal shock resistance. But different content of nano-cerium oxide CeO2 has different effects on its performance. 1. Nano cerium oxide CeO2 additive can obviously promote the sintering of alumina-based ceramics, im...
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Compared with traditional ceramic materials, ceramics sintered with nano titanium oxide produced by SAT NANO have the following characteristics: 1. Mechanical properties The mechanical properties of nano-oxide ceramics include the hardness, fracture toughness and low-temperature ductility of nano-ceramic materials. Especially the hardness and strength are greatly improved at high temperature, and ...
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1. Nano cerium oxide improves the anti-ultraviolet aging performance of polymers The 4f electronic structure of nano CeO2 is very sensitive to light absorption, and the absorption band is mostly in the ultraviolet region (200-400nm). It has no characteristic absorption of visible light and has good transmittance. Ordinary ultra-fine CeO2 for UV absorption has long been used in the glass industry: ...
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The singular properties of nanomaterials include: ①Surface effect The surface area of a spherical particle is proportional to the square of the diameter, and its volume is proportional to the cube of the diameter, so its specific surface area (surface area/volume) is inversely proportional to the diameter. As the particle diameter becomes smaller, the specific surface area will increas...
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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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Open your mouth and align the teeth with a 3D scan, and the 3D printer can print a zirconia ceramic denture. Before the advent of 3D printing technology, people needed to bite out the dental membrane to make a denture, and then sent it to the factory for production, and repeated carving, the production cycle was longer, and 3D printing technology not only improved efficiency, but also greatly save...
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The phase change toughening of yttrium stabilized nano zirconia and the toughening effect of nanoparticles are used to improve the comprehensive mechanical properties of the alumina matrix. Adding different contents of nano 3Y-ZrO2 to the alumina matrix, the comprehensive mechanical properties of the material with a content of 15wt% of nano ZrO2 reach the best (flexural strength 766.74MPa, fractur...
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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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Nano technology spans multiple disciplines, involving a wide range of faces, and has had huge impacts in many areas and even the entire social life, such as in the fields of physics, chemistry, material science, biology, medicine, engineering, and computer simulation. Nano particles appeared in the 1980s, that is, pink particles with a particle size of less than 100nm. Because of the small nanopar...
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In recent years, with the development of science and technology, nanotechnology has begun to be applied to all aspects of our lives, and the fields involved are also increasing. Especially when this emerging technology meets our traditional industry ceramics, the combination of the two improves the product added value of the ceramic industry. Alumina ceramics have a series of excellent characteris...
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