Nano Alumina - The Main Raw Material For Special Ceramics
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Update time : 2023-06-30 09:36:41
What is Nano Alumina? Nano alumina is a kind of alumina powder with a particle size of a nanometer; the size of the powder is between 1-100 nm; nano alumina is a white powder, the crystalline phase is α-Al2O3, with high temperature inert, it still has high strength, high toughness, corrosion resistance, anti-wear, high insulation, and high chemical stability at high temperature, and nano alumina is the hardest material in the world after diamond (for example, diamond is the hardest known material, its Mohs hardness is 10, alumina's Mohs hardness is 9 ).
Al2O3 porcelain sintered products have a flexural strength of up to 250 MPa, and hot pressed products up to 500 MPa. The purer the composition of Al2O3, the higher the strength. Strength can be maintained at high temperatures up to 900°C. With its mechanical strength, it can be used to make device ceramics and other mechanical components. Ceramics sintered with nano-alumina have increased strength and are less prone to fracture.
Properties of Nano Alumina Nano alumina materials have special photoelectric properties, high magnetoresistance phenomenon, non-linear resistance phenomenon, high strength, high toughness, good stability and other exotic properties at high temperatures, as well as a variety of nano-powder materials common small size effect, surface interface effect, quantum size effect and macroscopic quantum tunneling effect, so alumina ceramics can be used to manufacture high-speed cutting tools, high-temperature thermocouple casing, chemical high-pressure mechanical pump parts, internal combustion engine spark plug, artificial joints and aviation magnetic fluid power generation materials and a variety of ceramic devices.
Alumina ceramics are based on the excellent properties of nano-alumina, with a high melting point, high hardness, chemical resistance, excellent dielectric properties, the most stable crystalline form of alumina in all its forms, and the only crystalline form of alumina that exists in nature. The role of alumina in ceramics is mainly: wear resistance, increased strength, and the formation of a surface composite coating; this coating can make the mechanical, physical, and chemical properties of the substrate surface to improve, giving the substrate surface new mechanical, and thermal, optical, electromagnetic and catalytic sensitivity and other functions, to achieve the purpose of surface modification and functionalization of materials.
Application of Nano Alumina Nano alumina can be made into light-transmitting materials (light-transmitting Al2O3 porcelain) for the manufacture of sodium vapor lamps, microwave rectifiers, infrared windows, laser oscillation elements, etc.
Nano alumina can be used as solar cell material and battery material.
With the continuous progress of nanoscience and technology, it has a profound impact on the wide application of alumina industry. As a special functional material, nano alumina has many excellent characteristics, such as high hardness, high strength, corrosion resistance, wear resistance, high-temperature resistance, high insulation, high oxidation resistance, etc. Therefore, nano alumina can be widely used in precision ceramics, bio-ceramics, chemical catalysts, refractory materials, integrated circuits and aerospace, integrated circuits and aerospace.
Nano Alumina Powder Price The price is influenced by many factors, such as the supply and demand in the market, industry trends, economic activity, market sentiment, and unexpected events. If you are looking for the latest nano alumina powder price, you can feel free to send us your inquiry for a quote.
Nano Alumina Powder Supplier Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted nano alumina powder manufacturer and Al2O3 powder supplier with over 12-year-experience. We ship our goods all over the world. If you are looking for high-quality nano alumina powder, please feel free to contact us and send an inquiry. ([email protected])
