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Al₂O₃ Precision alumina ceramic grading wheel

Al₂O₃Alumina ceramics have good insulation, thermal insulation and wear resistance. Because of their relatively low price and balanced performance, it is one of the most
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Product description
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Alumina ceramics have good insulation, thermal insulation and wear resistance. Because of their relatively low price and balanced performance, it is one of the most widely used ceramic materials. High-purity (99.5% and above) alumina has good corrosion resistance and plasma etching resistance, and is widely used in pan-semiconductor equipment.

 

Main features: 

Insulation, heat insulation, wear resistance, corrosion resistance, plasma etching resistance.

main application:

Pan-semiconductor equipment (LCD and LED manufacturing equipment) spare parts, insulation parts, wear parts, general machinery, hydraulic parts.

Technical indicators:

Main ingredient content 99% alumina

99.9%alumina

densityg/cc

3.86

3.93

Water absorption%

0

0
Mechanical properties

 Vickers hardnessGPa

13.8

18.5

 Bending strengthMPa

350

350

 Compressive strengthMPa

2250

2600

 Young's modulusGPa

330

380

 Poisson's ratio

0.23

0.23

Fracture toughnessMPa·m1/2

3

4~5
Thermal characteristics

 Coefficient of linear expansion40~400℃*10-6/℃

7.1

8.2

 Thermal conductivity20℃W/(m·K)

25

32

 Specific heatJ/(kg·K)*103

0.78

0.78

 Thermal shock resistance ℃

200

220
Electrical characteristics

 Volume resistivity20℃ Ω·cm

＞1014

＞1015

 Dielectric strengthKV/mm

16

17

 Dielectric constant

9

9.7

 Dielectric loss factor*10-4

3

1
Keyword:
al2o3
氧化铝
设备
mpa
特性
350
应用
广泛
20
绝缘性
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021-65726586

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Rm. 504, No.1398, PingLiang Rd.,Yangpu District, Shanghai, China 

About us

The company insists on independent innovation, and has obtained a number of scientific research achievements and invention patents in the fields of rubber chemicals and ultrafine materials.

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