Alumina (Al2O3) ceramics have a high content of aluminum oxide and a relatively dense structure and have special properties, so they are called special ceramics. It has a high melting point, high hardness, and good chemical stability. Alumina ceramic is a good material for high temperature and chemical corrosion resistance. Alumina gaskets are available in different sizes and thicknesses. Custom Alumina Gasket are available by Edgetech.

Alumina Gasket can withstand extremely high temperatures under reducing, inert, or high vacuum conditions. They maintain good chemical resistance at high temperatures and have excellent wear and abrasion resistance.

Alumina Ceramic Parameter

Item

Unit

96% Alumina

99% Alumina

Color

–

White

Beige

Density

g/cm3

3.6

3.9

Water Absorption

%

0

0

HV Hardness

MPa

1500

1600

Compressive Strength

MPa

2500

3000

Flexural Strength

MPa

300

350

Facture Toughness

Mpa.m0.5

3-4

4

Thermal Conductivity

W/(m.k)

25

31.4

Thermal Expansivity Coefficient

10-6K-1

6-7.5

8

The Max working temperature

℃

1400

1600

Advantage of Alumina Gasket

-High hardness

-Extremely abrasive resistance performance

-Lightweight

-Wide scope of application

-High thermal conductivity

-High voltage insulation resistance

-High temperature resistant

Application of Alumina Ceramic Gasket

Alumina ceramics are mainly used in large power equipment, IC MOS tubes, IGBT chip thermal insulation, high-frequency power supplies, communications, mechanical equipment, high current, high voltage, high temperature, and other products that require thermal insulation.

Packing

Our Alumina Gaskets are carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.