Cordierite Ceramic Rod Description
Cordierite ceramic rod is made of cordierite ceramic. Cordierite ceramic is a type of magnesium aluminum silicate with particularly good thermal shock properties. Cordierite also has low thermal conductivity and thermal expansion, while also being cost-effective. Often used as a structural ceramic for kiln furniture applications, it also finds uses in other applications where rapid temperature changes take place.
Cordierite Ceramic Rod Characteristics
- Excellent thermal shock properties
- Low thermal conductivity and thermal expansion
- Good mechanical strength
- Can be used up to approximately 1200°C
- Outstanding crack-resistance
Cordierite Ceramic Rod Specifications
Properties
|
Units
|
Test
|
Value
|
Physical Properties
|
Chemical Formula
|
-
|
-
|
2MgO-2Al2O3-5SiO2
|
Density
|
g/cm3
|
ASTM C20
|
2.60
|
Color
|
-
|
-
|
off-white
|
Crystal Structure
|
-
|
-
|
orthorhombic
|
Water Absorption
|
% @R.T.
|
ASTM C373
|
0.02 - 3.2
|
Hardness
|
Moh's
|
-
|
7
|
Hardness
|
knoop (kg/mm2)
|
Knoop 100g
|
--
|
Mechanical Properties
|
Compressive Strength
|
MPa @ R.T.
|
ASTM C773
|
350
|
Tensile Strength
|
MPa @ R.T.
|
ACMA Test #4
|
25.5
|
Modulus of Elasticity
(Young's Mod.)
|
GPa
|
ASTM C848
|
70
|
Flexural Strength (MOR)
|
MPa @ R.T.
|
ASTM F417
|
117
|
Poisson's Ratio, u
|
-
|
ASTM C818
|
0.21
|
Thermal Properties
|
Max. Use Temperature (* denotes inert atm.)
|
ºC
|
No load cond.
|
1371
|
Thermal Shock Resistance
|
DT (ºC)
|
Quenching
|
500
|
Thermal Conductivity
|
W/m-K @ R.T.
|
ASTM C408
|
3.0
|
Coefficient of Linear Thermal Expansion
|
mm/m-℃
(~25℃ through ±1000℃)
|
ASTM C372
|
1.7
|
Specific Heat, cp
|
cal/g-ºC @ R.T.
|
ASTM C351
|
0.35
|
Electrical Properties
|
Dielectric Constant
|
1MHz @ R.T.
|
ASTM D150
|
4.7
|
Dielectric Strength
|
kV/mm
|
ASTM D116
|
5.11
|
Electrical Resistivity
|
Wcm @ R.T.
|
ASTM D1829
|
1014
|
Applications of Cordierite Ceramic Rod
1. Kiln Furniture: Cordierite ceramic rods are widely used as supports, spacers, and other structural components in kiln furniture. Their ability to withstand high temperatures and thermal cycling without warping makes them ideal for use in kilns and furnaces in the ceramics industry.
2. Heater Support Rods: In high-temperature electric heaters and furnaces, cordierite rods are used as support rods for heating elements. Their low thermal expansion and good thermal stability help to maintain the structural integrity of the heating system.
3. Electrical Insulators: Cordierite rods are used as insulators in electrical systems, especially in high-voltage and high-temperature environments. Their good electrical insulating properties and resistance to thermal shock make them suitable for this purpose.
4. Catalytic Converters: In the automotive industry, cordierite rods may be used in the construction of catalytic converters, where they help support the catalyst material and contribute to reducing vehicle emissions. Cordierite’s thermal properties are crucial for the converter’s performance under high temperatures.
5. Infrared Heaters: Cordierite ceramic rods are employed in infrared heaters as support structures or radiating elements. Their ability to withstand high temperatures and thermal cycling makes them ideal for consistent and efficient heat output in infrared applications.
6. Labware and Crucibles: Cordierite rods are used in laboratory equipment, such as in the production of crucibles and other labware that need to withstand high temperatures. Their resistance to thermal shock is particularly beneficial in applications involving rapid temperature changes.
7. Mechanical Components: In industrial machinery, cordierite rods are used as spacers, guides, and other mechanical components that require dimensional stability and resistance to thermal expansion.
8. Combustion Chambers: Cordierite rods are used in combustion chambers and burners where they help to support structures that are exposed to high temperatures and require resistance to thermal shock and chemical attack.
9. Chemical Processing Equipment: In the chemical industry, cordierite ceramic rods are used in equipment that requires resistance to high temperatures and corrosive environments. Their chemical inertness and thermal properties make them suitable for these demanding applications.
10. Thermal Insulation: Cordierite rods are also used in thermal insulation systems where they provide structural support while minimizing thermal expansion and maintaining stability under thermal cycling.
Cordierite Ceramic Rod Packing
Our Cordierite Ceramic Rod is carefully handled during storage and transportation to preserve the quality of our product in its original condition.