Description of Mullite Ceramic Plate
Mullite Ceramic Plate is a flat component made from mullite, a silicate mineral composed of aluminum oxide and silicon dioxide (3Al2O3·2SiO2). This ceramic material is known for its exceptional properties, making it highly suitable for various high-temperature applications. The unique combination of high thermal stability, low thermal expansion, excellent mechanical strength, and resistance to thermal shock and chemical attack makes mullite an ideal choice for manufacturing plates used in demanding environments.
Specifications of Mullite Ceramic Plate
Chemistry content
|
Al2O3
|
SiO2
|
TiO2
|
Fe2O3
|
CaO·MgO
|
K2ONa2O and others
|
62.50%
|
34.50%
|
0.10%
|
0.80%
|
0.90%
|
1.30%
|
Mechanical
|
Units of Measure
|
SI/Metric
|
(Imperial)
|
Density
|
gm/cc (lb/ft3)
|
2.8
|
-175
|
Porosity
|
% (%)
|
0
|
0
|
Color
|
-
|
off-white
|
off-white
|
Flexural Strength
|
MPa (lb/in2x103)
|
180
|
-26
|
Elastic Modulus
|
GPa (lb/in2x106)
|
151
|
-22
|
Shear Modulus
|
GPa (lb/in2x106)
|
-
|
-
|
Bulk Modulus
|
GPa (lb/in2x106)
|
-
|
-
|
Compressive Strength
|
MPa (lb/in2x103)
|
1310
|
-190
|
Hardness
|
Kg/mm2
|
1070
|
-
|
Fracture Toughness KIC
|
MPa•m1/2
|
2
|
-
|
Maximum Use Temperature
|
°C (°F)
|
1650
|
-3000
|
(no load)
|
Thermal
|
Thermal Conductivity
|
W/m•°K (BTU•in/ft2•hr•°F)
|
6
|
-42
|
Coefficient of Thermal Expansion
|
10–6/°C (10–6/°F)
|
5.4
|
-3
|
Electrical
|
Dielectric Strength
|
ac-kv/mm (volts/mil)
|
9.8
|
-245
|
Dielectric Constant
|
@ 1 MHz
|
5.8
|
5.8
|
Dissipation Factor
|
@ 1 kHz
|
0.003
|
0.003
|
Volume Resistivity
|
ohm•cm
|
>1013
|
>1013
|
Applications of Mullite Ceramic Plate
1. High-Temperature Insulation: Mullite ceramic plates are used as insulation materials in high-temperature furnaces, kilns, and reactors. Their ability to withstand extreme temperatures without deforming or breaking down makes them ideal for lining and protecting these environments.
2. Thermal Barriers: In applications such as gas turbines, heat exchangers, and combustion chambers, mullite ceramic plates serve as thermal barriers to protect other components from intense heat, helping to improve efficiency and extend the lifespan of the equipment.
3. Refractory Components: Mullite ceramic plates produce refractory bricks, shapes, and components exposed to high temperatures and corrosive environments, such as in steelmaking, glass production, and cement kilns.
4. Substrates for Electronic Devices: Due to their electrical insulation properties and thermal stability, mullite ceramic plates are used as substrates in electronic devices, particularly in high-temperature applications where other materials fail.
5. Structural Components in High-Temperature Applications: Mullite ceramic plates can be used as structural components in high-temperature processing equipment, such as kiln furniture, where they provide support and separation for products being fired in kilns.
6. Protective Coatings and Liners: Mullite ceramic plates are used as protective coatings or liners in equipment that operates under harsh conditions, such as in chemical processing plants, where they protect against thermal shock and chemical attack.
7. Catalyst Supports: In chemical and petrochemical industries, mullite ceramic plates are sometimes used as catalyst supports in reactions that take place at high temperatures, due to their stability and resistance to thermal cycling.
8. Environmental and Energy Applications: Mullite ceramic plates are used in applications such as waste incineration, where high-temperature stability and resistance to chemical attack are critical for reliable operation.
9. High-Temperature Filters: Mullite ceramics are also used in high-temperature filtration systems, such as in gas or molten metal filtration, where they can withstand extreme conditions while maintaining their structural integrity.
10. Laboratory Equipment: Mullite ceramic plates are used in various laboratory applications, including as components in furnaces, crucibles, and sample holders, where their resistance to thermal shock and chemical stability are important.
Packing of Mullite Ceramic Plate
Our Mullite Ceramic Plate is carefully handled during storage and transportation to preserve the quality of our product in its original condition.