We can offer varieties of ceramic parts such as below:
|
Commodity Idex
|
Unit
|
95% alumina
|
99%
Alumina
|
Steatite
|
ullite
|
Cordierite
|
|
Composition
|
|
Al2o3
≥95%
|
Al2o3
≥99%
|
MgO SiO2
|
3A12O3 2SiO2
|
2MgO，2Al2O3，5SiO2
|
|
Density
|
g/cm3
|
3.6
|
3.9
|
2.8
|
3
|
2.5
|
|
Water Absorption
|
%
|
0
|
0
|
0
|
0
|
0
|
|
Firing Temperature
|
℃
|
1,680
|
1,700
|
1,350
|
1,300
|
1,350
|
|
Hardness
|
HV
|
1,500
|
1,700
|
800
|
1,000
|
800
|
|
Flexural Strength(4pt)
|
Kgf/cm2
|
3,000
|
3,500
|
900
|
1,100
|
900
|
|
Compression Strength
|
Kgf/cm2
|
25,000
|
30,000
|
4,000
|
6,000
|
3,500
|
|
Maximum Use Temperature
|
℃
|
1,450
|
1,500
|
1,100
|
1,000
|
1,000
|
|
Thermal Expansion
|
/℃
|
8.0×10-6
|
8.0×10-6
|
6×10-6
|
6×10-6
|
4.0×10-6
|
|
0-1000℃
|
|
|
|
|
|
|
|
Thermal Shock Resistance
|
T(℃)
|
220
|
200
|
200
|
300
|
250
|
|
Dielectric Strength
Dielectric Constant
|
KV/mm
|
18
|
18
|
10
|
10
|
10
|
|
(E)
|
9.5
|
10
|
5.8
|
6
|
6
|
|
(100 Mhz)
|
|
|
|
|
|
|
|
Dielectric Tangent
|
(tg δ)
|
0.4×10-3
|
0.4×10-3
|
0.4×10-3
|
0.4×10-3
|
0.4×10-3
|
|
