High-purity alumina specifically for industrial wear-resistant ceramics

Xuancheng Jingrui, Miss Yang; 13305******, QQ: 524915046

Join10%–15% of high-purity nano-alumina (VK-L30) enhances sintering activity, allowing ordinary alumina ceramics to reduce their sintering temperature by 70–150°C. At the same time, it can also decrease the porosity of alumina ceramics and increase their bulk density.

In industry, when pre-calcining alumina, an appropriate amount of additives is usually added, such as H3BO4, NH4F, AlF3, high-purity nano-alumina (VK-L30), etc. Additives can lower the pre-calcination temperature, promote crystal transformation, and remove impurities such as Na2O. Add 10%~15% high-purity nano-alumina enhances sintering activity and can reduce the sintering temperature by 70-100 degrees Celsius.

Nano-alumina is added to ceramics.ChineseNot only can it improveCeramicsNot only does it improve the sintering performance, but it also significantly enhances the properties of alumina.The strength and hardness of ceramics make them resistant to drops, high-temperature aging, and long-lasting durability.。

Domestic research institutions have confirmed that adding nano-alumina can improve thermal stability by 2-3 times and flatness by 1.5 times. Our company's nano-alumina for ceramics features high purity, small particle size, and good dispersibility, and is widely used in various ceramics.

During the powder extrusion molding process, nano α-Al₂O₃ powder can fill the pores of micron-sized alumina powder, reducing the pore size. An increase in molding pressure can decrease the number of pores, thereby enhancing the density of the ceramic green body and improving the density and mechanical properties of the sintered alumina ceramic.

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