Customization: | Available |
---|---|
Application: | High-Temperature Furnaces, Refractory, Furnace Tube |
Ceramic Tube & Rod: | Ceramic Tube |
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Item |
Unit |
Steatite ceramic |
95 Al2O3 |
96 Al2O3 |
|
Physical Characteristics |
Bulk density |
g/cm3 |
2.7 |
3.6 |
3.6 |
Water absorption |
% |
0 |
0 |
0 |
|
Mechanical Characteristics |
Flexural strength |
Mpa |
145 |
320 |
340 |
Hardness Vickers |
Gpa |
5.7 |
12.2 |
13.5 |
|
Elastic modulus |
Gpa |
120 |
280 |
320 |
|
Poisson's ratio |
- |
0.21 |
0.22 |
0.23 |
|
Thermal Characteristics |
Linear expansion coefficient |
(20-5000C) 10-6/ºC |
7.9 |
7.1 |
7.2 |
Thermal conductivity |
w/(m.k) |
2.5 |
16 |
24 |
|
Specific Heat |
*10-3J/(kg*K) |
0.75 |
0.78 |
0.78 |
|
Electrical Characteristics |
Dielectric constant(1MHZ) |
- |
6.2 |
9 |
9.4 |
Dielectric loss angle |
*10-4 |
18 |
15 |
5 |
|
Dielectric strength |
*106V/m |
18 |
12 |
15 |
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