{"product_id":"α-alumina-oxide-nanopowder","title":"α- Alumina oxide Nanopowder","description":"\u003cp\u003eProduct Name α- Alumina oxide Nanopowder Product Overview The chemical composition of alumina is A1203, which is a stable and high-strength inorganic compound with a melting point of 2050 ° C, a boiling point of 2980 ° C, a relative density of 3.965, easy to absorb moisture but not deliquescent. The hardness of alumina is second only to diamond, almost insoluble in water, slightly soluble in acid and alkali, and has high corrosion resistance. It is also an electrical insulator. High purity alumina (Al2O3) has multiple crystal forms, among which the alpha phase and gamma phase are the two main variants. Alpha phase alumina belongs to the trigonal crystal system and has a closely packed hexagonal stacking structure. In this structure, oxygen atoms are tightly packed in a hexagonal pattern, while aluminum atoms are filled in the octahedral voids. Alpha phase alumina is the most stable phase and exists stably at room temperature. It has high purity, small particle size and uniform distribution, large specific surface area, clean surface without residual impurities, low loose density, and easy dispersion. In addition, alpha alumina has high hardness and good dimensional stability, and is commonly used for reinforcing and toughening materials such as ceramic sintering and lithium battery separator coating. Technical Parameter Purity:99.9 wt% Particle size:150~500 nm Product Features High hardness: It is the highest hardness among various crystal phases of alumina, with a Mohs hardness of 9. High melting point: The melting point is about 2054 °C, and it has excellent high temperature resistance. Good chemical stability: Stable in most chemical environments and not easily corroded. Excellent insulation: It is a good electrical insulator. Strong wear resistance: able to withstand significant friction and wear. Application Fields Ceramic materials: As reinforcing and toughening agents for ceramic products, they improve the density, smoothness, thermal fatigue resistance, and fracture toughness of ceramics. Lithium battery: used for coating lithium battery separators to enhance battery performance. Plastic and rubber: as fillers, improve the thermal conductivity and mechanical strength of plastic and rubber. Abrasive: Due to its high hardness and wear resistance, it is commonly used in the manufacture of grinding tools such as sandpaper and grinding wheels. For example, it is used for grinding and polishing in metal processing. Refractory material: Its excellent high temperature resistance makes it a high-quality refractory material used for lining high-temperature kilns, etc. Such as steel smelting furnaces, glass melting furnaces, etc. Electronic materials: substrates and packaging materials used for electronic components due to their good insulation properties. Such as the packaging of integrated circuits. Catalyst carrier: provides stable support and a large specific surface area for the catalyst. Related Information Please e-mail for the detailed characterization data. E-mail:sales@xfnano.com\u003c\/p\u003e","brand":"xfnano","offers":[{"title":"100 g particle size: 150~500 nm 100387 \/ Store at room temperature in a dry, dark and sealed place \/ 365days","offer_id":57280474022266,"sku":"100387","price":15.63,"currency_code":"USD","in_stock":true},{"title":"500g particle size: 150~500 nm 100388 \/ Store at room temperature in a dry, dark and sealed place \/ 365days","offer_id":57280474055034,"sku":"100388","price":62.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0907\/3606\/6938\/files\/1_27871cef-ce01-415a-9a0e-d29d5e516d17.png?v=1780024497","url":"https:\/\/chinanano.com\/es\/products\/%ce%b1-alumina-oxide-nanopowder","provider":"xfnano","version":"1.0","type":"link"}