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By mixing a small amount of nano silica into concrete, ultra-high strength and ultra-high durability concrete can be easily prepared. At present, a large number of research results have proved that nano SiO2 has a good modification effect on cement. The cement paste doped with nano silica has reduced fluidity, shortened setting time, and significantly improved early strength. Nano-doped nano silic...
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Because of its low density, good oxidation resistance, high temperature resistance and corrosion resistance, silicon carbide has promoted the development of silicon carbide in the field of brake pads. Silicon carbide composite material is a material that can meet the high temperature of 1650-1700 ℃. Adding silicon carbide powder in the production of brake pads can more effectively improve the stab...
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1. Application of Nano Iron Oxide in Decoration Materials In pigments, nano-iron oxide is also called transparent iron oxide (iron penetration). The so-called transparency does not specifically refer to the macroscopic transparency of the particles themselves, but refers to the dispersion of pigment particles in the organic phase to make a layer of paint film (or oil film). When light is irradiate...
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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, among which β type has better performance than α type. Type β has higher...
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Nanomaterials refer to materials in which at least one dimension in the three-dimensional space is in the nanoscale range or is composed of them as basic units. Nano-gold is a kind of nano-materials, which are nano-sized particles of gold, with a diameter generally between 1-100 nm. Nano gold has very special optical properties, which are mainly manifested in two aspects of light absorption and sc...
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The field of biomedicine is a brand-new research field formed by integrating the methods and theories of medicine, biology and other related disciplines. Its research content includes biomedicine, clinical applied chemistry, cytology and immunology. With the rapid development of technology, cutting-edge research and inventions in many popular fields play an important role in the field of biomedici...
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Nano silica SIO2 is an important member of nano-materials. SAT Nano is currently capable of mass production. This move is bound to be China's electronic packaging materials, polymer composite materials, ceramics, rubber, plastics, glass steel, adhesives, and sealing The upgrading of products in many industries, such as glue and coating, brings new opportunities. Nano SIO2 silica is widely used in ...
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Nano silica SIO2 is an amorphous white powder which refers to its agglomerate material. It is a member of nano-materials. Its structure is very special and exhibits strange or abnormal physical and chemical properties. Because nano-silica SIO2 has small size effect, surface interface effect, quantum size effect, macro quantum tunneling effect and excellent light, force, electricity, heat, magnetis...
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Black silicon carbide is made of quartz sand, petroleum coke and high-quality silica as the main raw materials, and is smelted at high temperature in a resistance furnace. The raw materials used in the manufacture of green silicon carbide, such as black silicon carbide, are roughly the same, and industrial salt is added as a reactant and accelerator to react in a resistance furnace. In terms of it...
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1. The lubricity of boron nitride Boron nitride came out more than 100 years ago. Its earliest application polymorph is hexagonal boron nitride as a high-temperature lubricant, abbreviated as: h-BN, or a-BN, or g-BN (that is, graphite boron nitride), Hexagonal boron nitride is absolutely smooth, and the friction coefficient between the powders is very low. Each layer of its atomic structure contai...
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Cesium Tungsten Bronze (CsxWO3) is a non-stoichiometric functional compound with a special oxygen octahedral structure. It has low resistivity and low temperature superconductivity. In recent years, it has been discovered that CsxWO3 film has good near-infrared shielding performance, which is expected to replace the existing ITO conductive glass. As a window material, it can be used as a good near...
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According to different aggregation states, substances can be divided into steady state, unsteady state and metastable state. Generally, bulk materials are stable; particles with a particle size of about 2nm are unstable, and their structure is constantly changing when observed under a high-power electron microscope; and powders with a particle size of about micrometers are in a metastable state. T...
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