K95 alumina bulletproof ceramics

Alumina ceramics is a kind of common and widely used special ceramic materials. Sintering is an important process in the production of alumina ceramics. Sintering is the process of pressing the powder material through the mold, heating to a certain temperature, so that the fusion between the particles occurs, leading to the formation of a dense solid. K95 alumina ceramic is a kind of conventional bulletproof material, which is widely used in bulletproof inserts. When the alumina content is ≥95%, it is called K95 alumina ceramics.

K95 alumina ceramics have high hardness, high wear resistance, high melting point, high insulation and various chemical stability, and are widely used in aerospace, automotive energy, chemical and other fields. Because of its excellent mechanical properties, high hardness, strong wear resistance, good stability, strong toughness, and small thermal expansion coefficient, it has good energy absorption and small bullet holes. As a result, it is favored by military experts in various countries and is widely used.

As the first generation of ceramics in the field of bulletproof, Alumina is not only the strongest and hardest of all oxides, but also has the advantages of good oxidation resistance and chemical inertness, as well as low cost and easy access. In addition, sintered products are widely used in all kinds of armored vehicles and military and police bulletproof clothing because of their smooth surface, stable size and low price.
 

Disadvantages: low bending strength and fracture toughness, low thermal shock resistance. In addition, the performance of alumina is unstable, mainly depending on the process parameters, impurity content, particle size and sintering temperature.

However, Kingcera brand alumina ceramics is sintered by high-quality alumina powder from Australia. The alumina powder will be converted into α-alumina at a high temperature of 1700℃, forming a special crystal structure. Not only the hardness exceeds RHA85, but also α-alumina has a high chemical stability, which can resist most acid and alkali corrosion and has strong high temperature resistance. Therefore, our powder sintering, grinding and granulation are all completed in the factory of Kingcera, which has a better shooting test parameter than that of other brands.