Mullite Heater Plate
Abstract:
Mullite heater plate, made of silicate ceramic mullite (3Al2O32SiO2), is a refractory oxide material showing low thermal expansion, good mechanical strength, and resilience at elevated temperatures. Supreme Ceramic Materials (SCM) supplies Mullite Heater Plates with high quality and fast delivery, and customized products are also available.
Description
Mullite heater plate is made of silicate ceramic mullite (3Al2O32SiO2). Mullite is a refractory oxide material combining low thermal expansion, good mechanical strength, and resilience at elevated temperatures. Raw mullite materials are easily obtained and are reasonably priced. It is certainly one of the most important oxide materials for both conventional and advanced ceramics. Its workability allows an extensive range and flexibility in fabrication.
Mullite Heater Plate Specifications
|
Chemistry Content |
Al2O3 |
SiO2 |
TiO2 |
Fe2O3 |
CaO·MgO |
K2ONa2O, etc. |
|
62.50% |
34.50% |
0.10% |
0.80% |
0.90% |
1.30% |
|
|
Units of Measure |
SI/Metric |
(Imperial) |
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|
gm/cc (lb/ft3) |
2.8 |
-175 |
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|
Mechanical |
% (%) |
0 |
0 |
|||
|
Density |
– |
off-white |
off-white |
|||
|
Porosity |
MPa (lb/in2x103) |
180 |
-26 |
|||
|
Color |
GPa (lb/in2x106) |
151 |
-22 |
|||
|
Flexural Strength |
GPa (lb/in2x106) |
– |
– |
|||
|
Elastic Modulus |
GPa (lb/in2x106) |
– |
– |
|||
|
Shear Modulus |
MPa (lb/in2x103) |
1310 |
-190 |
|||
|
Bulk Modulus |
Kg/mm2 |
1070 |
– |
|||
|
Compressive Strength |
MPa•m1/2 |
2 |
– |
|||
|
Hardness |
°C (°F) |
1650 |
-3000 |
|||
|
Fracture Toughness KIC |
°C (°F)
|
1650
|
-3000
|
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|
Maximum Use Temperature |
°C (°F)
W/m•°K (BTU•in/ft2•hr•°F) |
1650
6 |
-3000
-42 |
|||
|
(no load) |
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|
Thermal |
10–6/°C (10–6/°F) |
5.4 |
-3 |
|||
|
Thermal Conductivity |
|
|
|
|||
|
Coefficient of Thermal Expansion |
ac-kv/mm (volts/mil) |
9.8 |
-245 |
|||
|
Electrical |
@ 1 MHz |
5.8 |
5.8 |
|||
|
Dielectric Strength |
@ 1 kHz |
0.003 |
0.003 |
|||
|
Dielectric Constant |
ohm•cm |
>1013 |
>1013 |
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|
Dissipation Factor |
|
|
|
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|
Volume Resistivity |
|
|
|
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