Ceramics & Insulating materials supplier

95% Alumina ceramic high quality ceramic positioning block

95% Alumina ceramic high quality ceramic positioning block

Ceramic positioning blocks

Descriptions:

The specific functions of ceramic positioning blocks mainly include the following aspects:

  • High-precision positioning: Due to their extremely high manufacturing precision, ceramic positioning blocks can achieve sub-micrometer accuracy. Therefore, in fields requiring high precision such as optics and semiconductors, they can provide precise positioning functions, ensuring the accuracy of processing or installation.
  • Wear resistance and durability: Ceramic materials have high hardness ,it allows ceramic positioning blocks to withstand greater pressure and wear during use without damage or deformation, thereby extending their service life.
  • Good stability: Ceramic positioning blocks exhibit excellent dimensional stability and are not affected by temperature and humidity. This characteristic is particularly important for equipment operating in high-temperature and high-pressure environments, ensuring stable operation over long periods without a decrease in positioning accuracy due to environmental factors.
  • Strong corrosion resistance: Ceramic materials also have excellent corrosion resistance and can remain stable in working environments with strong corrosive media, further expanding the application range of ceramic positioning blocks.

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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