Ceramics & Insulating materials supplier

99% Alumina ceramic round plates with a hole

99% Alumina ceramic round plates with a hole

99% Alumina parts

Ceramic round plates:

Due to the high temperature resistance of alumina ceramics, round standard plates can be used as a sintering base for various components such as crucibles. Alternatively, they serve as lids for round crucibles. If evaporation or temperature measurement inside the crucible is required, round plates with holes are used. In addition, the panels can be used as raw material for further processing.

Properties

Units

95%
Al2O3

99%
Al2O3

99.5%

Al2O3

Colour

White

Ivory

Ivory

Density

g/cm3

3.5

3.85

3.9

Flexural Strength

Mpa

280

340

350

Compressive Strength

MPa

2100

2200

2350

Max Use Temperature

°C

1400

1650

1650

Thermal Condutivity

W/m.K

16~28

19~30

19-31.4

Thermal Expansion Cofficient

10-6/°C

6.5~7.5

6~8

8

Thermal Shock Resistance

K

150

150

200

Specific Heat

J/kg.K

950

950

950

Dielectric Strength

KV/mm

10

12

18

Dielectric Constant

Er

9

9

10

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