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Nano zinc oxide and nano titanium oxide are two important and widely used physical sunscreens. Their principle of shielding ultraviolet rays is to absorb and scatter ultraviolet rays. Because they are all N-type semiconductors, the band gap of rutile nano-titanium oxide is 3.0 eV, and the band gap of nano-zinc oxide is 3.2 eV. When irradiated by ultraviolet rays, electrons in the valence band can ...
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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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Lanthanum belongs to rare earth oxides and is one of the important products of light rare earths. Because of its good physical and chemical properties, it has been widely used in civilian, military and high-tech fields. For example, La2O has been continuously developed in the application of rare glass, ceramics, catalysts, phosphors, lasers, heating elements, cathode materials and electrical conta...
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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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Under the situation of rapid development of science and technology, to prepare high-temperature, high-performance, new-type materials, the first thing to do is to solve the refractory materials needed in the preparation process. The characteristics of refractory materials are as follows: 1. Mechanical properties The elastic modulus of special refractory materials is large. Most have higher mechani...
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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 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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Nano cuprous oxide Cu2O is a kind of photoelectric material with a wide range of uses. The main uses are as follows: Nano cuprous oxide Cu2O is used as anti-fouling primer for ships in the coating industry to prevent marine organisms from adhering to the bottom of ships; Nano cuprous oxide Cu2O is used as a colorant for red glass and red enamel in the glass and ceramic industries; Nano cuprous oxi...
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Supercapacitor is a new type of energy storage element, which is widely used in starting power supply, pulse power supply, military, mobile communication device, computer and electric vehicle due to its advantages of large capacity, fast charging and discharging of large current, and long cycle life. and other research fields. According to the different energy storage mechanisms, supercapacitors c...
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Manganese dioxide (chemical formula: MnO2) is a black or brown solid, the most stable oxide of manganese, and is often found in pyrolusite and manganese nodules. Pylusite is the main mineral containing manganese; manganese nodules (submarine rock solids) also contain manganese. Manganese dioxide is mainly used to make dry batteries, such as carbon-zinc batteries and alkaline batteries; it is also ...
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1.physical properties Appearance and properties: black or black-brown crystalline or amorphous powder Relative molecular mass: 86.94 Chemical formula: MnO2 Melting point (℃): 535 (decomposition) Relative density (water=1) 5.03 Boiling point (°C): 535°C Solubility: insoluble in water, insoluble in nitric acid Storage: Store in an airtight and cool place 2.chemical properties Manganese dioxide is th...
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Nano zirconia has important application value in national defense, electronics, high-temperature structural and functional ceramics, especially in high-tech fields such as surface coatings. The unique low thermal conductivity of nano-zirconia is an excellent material for thermal insulation coatings to improve the thermal insulation effect. Its high corrosion resistance, high hardness and high wear...
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