Fine cordierite ceramic insulator Items
Product Description
The main chemical ingredient of cordierite ceramic is 2MgO·2Al2O3·5SiO2,main material is steatite, clay, alumina ,feldspar, etc. Manufactured by normal ceramic technic, can be used for loop frame work, insulators of arc-resistance ,element of composite materials ,burnable nozzle of electrical insulators, and etc.
Cordierite-based ceramics are extensively used in important industrial applications such as micro electronics, refractory products, heat exchanger for gas turbines ,thermal shock-resistant table ware, catalyst supports ,and porous ceramics .Low-expansion cordierite is suitable for being applied at high temperature circumstance where a good thermal shock resistance is required .
Small cordierite parts can be dry powder pressed. Large cordierite pieces are formed by slip casting.
Slip casting is a process where the ceramic material is mixed with water and poured into a
plaster mold. After a few hours the plaster draws off the water from the mix and the sagger or
other shape can be released from the mold. Parts are then dried and fired.
Item |
Test Condition |
Unit&Symbol |
Cordierite ceramics |
The main chemical ingredient |
|
|
2MgO 2Al2O3 5SiO2 |
Bulk Density |
|
gm/cc |
2.5 |
Maximum Use Temperature |
|
|
1000°C |
Water absorption |
|
% |
0 |
Hardness |
|
HV |
800 |
Bending Strength |
20° C |
Kgf/cm2 |
900 |
Compressive Strength |
20° C |
Kgf/cm2 |
3500 |
Fracture Toughness |
K(I c) |
Map.m3/2 |
- |
Thermal expansion |
|
1X 10-6/°C |
≤2.0 |
Thermal conductivity |
25° C-30° C |
W/m °K |
1.3- |
Thermal Shock Resistance |
Tc |
°C |
250 |
Dielectricity constant |
1MHz.25°C |
|
6 |
Dielectric strength |
|
ac-kV/mm (ac V/mil) |
10 |
Volume Resistivity |
20°C |
ohm-cm |
> 1012 |
HIGHBORN is one of the leading high quality quartz glass and precise ceramics manufacturer and supplier in China.
HIGHBORN has always been a defining force in the sale and fabrication of quartz glass within the semi-conductor, chemical, solar Energy and precise ceramics within semi-conductor, solar energy, textile, electronic, and laser industries.
Not only have we mastered the fabrication technology, our strength has always been based around listening to and understanding our customer's requirements and expectations.
Continuous improvement in all areas of our business is key to our grouth. What is equally important to us is maintaining in business, our inherent family values of trust, faimess and respect to our employees, suppliers and customers.
