Special Properties Of Alumina Ceramics

Alumina ceramic is a material with excellent electrical insulation, which can resist extremely high currents, and its dielectric constant and volume resistance increase with the increase of the purity of alumina. In industry, it is often applied to insulators of large machinery.

Alumina ceramic has a very high melting point and mechanical strength, through the experiment, without mechanical load, alumina ceramic temperature can reach 1650℃. However, when the temperature exceeds 1000 ° C, the mechanical strength of alumina ceramics will be reduced, due to the large difference in its coefficient of thermal expansion, when exposed to very high temperatures, its thermal shock resistance is less effective.

Alumina ceramics have excellent chemical stability and corrosion resistance. It is often used in the chemical industry. Alumina is also slightly soluble in strong acids (such as hot sulfuric acid and hot HCl and HF also have a certain corrosive effect) and alkaline solutions, insoluble in water. Pure alumina is resistant to chemical corrosion, making pure alumina ceramic materials the primary choice for engineering components in a variety of industrial applications. Its resistance to chemical corrosion has been shown to be due to its low solubility in these chemicals.

Alumina ceramics have excellent properties of high hardness, low density and high compressive strength. These characteristics have led to its application in military weapons. Such as tank armor, body armor and so on.

Alumina ceramics have excellent wear resistance and are often used to make mechanical rollers, bearings, wear-resistant linings, knife sharpens, precision parts in high-wear environments, etc. Such as the valve of the oil pump, the valve of the faucet, etc.

Alumina ceramics have biological inertia and food compatibility. It is widely used in the medical industry and food processing industry. Alumina ceramic is a material with excellent electrical insulation, which can resist extremely high currents, and its dielectric constant and volume resistance increase with the increase of the purity of alumina. In industry, it is often applied to insulators of large machinery.

Alumina ceramic has a very high melting point and mechanical strength, through the experiment, without mechanical load, alumina ceramic temperature can reach 1650℃. However, when the temperature exceeds 1000 ° C, the mechanical strength of alumina ceramics will be reduced, due to the large difference in its coefficient of thermal expansion, when exposed to very high temperatures, its thermal shock resistance is less effective.

Alumina ceramics have excellent chemical stability and corrosion resistance. It is often used in the chemical industry. Alumina is also slightly soluble in strong acids (such as hot sulfuric acid and hot HCl and HF also have a certain corrosive effect) and alkaline solutions, insoluble in water. Pure alumina is resistant to chemical corrosion, making pure alumina ceramic materials the primary choice for engineering components in a variety of industrial applications. Its resistance to chemical corrosion has been shown to be due to its low solubility in these chemicals.

Alumina ceramics have excellent properties of high hardness, low density and high compressive strength. These characteristics have led to its application in military weapons. Such as tank armor, body armor and so on.

Alumina ceramics have excellent wear resistance and are often used to make mechanical rollers, bearings, wear-resistant linings, knife sharpens, precision parts in high-wear environments, etc. Such as the valve of the oil pump, the valve of the faucet, etc.

Alumina ceramics have biological inertia and food compatibility. It is widely used in the medical industry and food processing industry.

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