There are both coarse and fine-grained varieties. Examples of applications for aluminum oxide Al2O3 advanced ceramics are heavy-duty forming tools, substrates and resistor cores in the electronics industry, tiles for wear protection and ballistics, thread guides in textile engineering, seal and regulator discs for water taps and valves, heat-sinks for lighting systems, protection tubes in thermal processes or catalyst carriers for the chemicals industry.
• High hardness
• Wear & abrasion resistant
• High compressive strength
• High mechanical Strength
• Resists strong acid and alkali attack at high temperatures
• Excellent electrical insulation properties
• Decent thermal conductivity
1. Furnace liner tubes
2. Thread and wire guides
3. Electronic substrates
4. Ballistic armor
5. Abrasion resistant tube and elbow liners
6. Thermometry sensors
7. Laboratory instrument tubes and sample holders
8. Instrumentation parts for thermal property test machines
Properties of alumina ceramic
|
Item
|
Unit
|
95% AI
2
O
3
|
99% AI
2
O
3
|
|
Color
|
-
|
white
|
ivory
|
|
Density
|
g/cm³
|
3.65
|
3.88
|
|
Water Absorption
|
%
|
0
|
0
|
|
Young's Modulus
|
Gpa
|
280
|
350
|
|
Vickers Hardness
|
Gpa
|
14
|
20
|
|
Flexural Strength ( at R.T. )
|
Mpa
|
280
|
300
|
|
Compressive Strength ( at R.T. )
|
Mpa
|
2000
|
2500
|
|
Thermal Conductivity ( at R.T. )
|
W/(m.K)
|
18-25
|
30
|
|
Thermal Shock Resistance
|
△t ( ℃ )
|
220
|
180-200
|
|
Max Working Temperature
|
℃
|
1500
|
1700
|
|
Volume Resistivity ( at R.T. )
|
Ω.cm
|
>10
15
|
>10
14
|
|
Dielectric Constant ( 1MHz at R..T. )
|
-
|
9.50
|
9.80
|
|
Dielectric Strength
|
kV/mm
|
16
|
22
|
Packaging Details:
(1) Export safe wooden box
(2)Inner boxes with filler .
(3)Outpackage is high quality cartons .
(4)Custom package
