Kuwait Alumina structure ceramic nozzle

Alumina nozzle has good insulation, thermal insulation and wear resistance, because the price is relatively cheap, and its comprehensive performance balance, is one of the most widely used ceramic materials

Product Description

Alumina ceramics has good insulation, thermal insulation and wear resistance, because the price is relatively cheap, and its comprehensive performance is balanced, is one of the 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 devices.

Main features:                                                         

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

Main applications:

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

Technical indicators:

Content of main components

99% Alumina

99.9% Alumina

Density g/cc

3.86

3.93

Water absorption%

0

0

Mechanical characteristics

Vickers hardness GPa

13.8

18.5

Bending strength MPa

350

350

Compressive strength MPa

2250

2600

Young's modulus GPa

330

380

Poisson's ratio

0.23

0.23

Fracture toughness MPa · m1/2

3

4~5

thermal characteristics

Linear expansion coefficient 40~400 ℃ * 10-6/℃

7.1

8.2

Thermal conductivity 20 ℃ W/(m · K)

25

32

Specific heat J/(kg · K)* 103

0.78

0.78

Thermal shock resistance capacity ℃

200

220

electrical characteristics

Volume resistivity 20 ℃ Ω · cm

>1014

>1015

Dielectric strength KV/mm

16

17

dielectric constant

9

9.7

Dielectric loss coefficient * 10-4

3

1