Mullite Ceramic Tube
Abstract
Mullite Ceramic Tube, made of silicate ceramic mullite, is a refractory oxide material showing low thermal expansion, good mechanical strength, and resilience at elevated high temperatures. Supreme Ceramic Materials (SCM) supplies Mullite Ceramic Tubes with high quality and fast delivery, and customized products are also available.
Mullite Ceramic Tube Description
Mullite tube is made of silicate ceramic mullite. The main crystal phase of mullite tube is 3Al2O3·2SiO2. It has 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. It is well suited for the casting of special shapes and larger tubes.
Mullite Ceramic Tube Specifications:
|
Chemistry Content |
Al2O3 |
SiO2 |
TiO2 |
Fe2O3 |
CaO·MgO |
K2ONa2O, etc. |
|
62.50% |
34.50% |
0.10% |
0.80% |
0.90% |
1.30% |
|
|
Mechanical |
Units of Measure |
SI/Metric |
(Imperial) |
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|
Density |
gm/cc (lb/ft3) |
2.8 |
-175 |
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|
Porosity |
% (%) |
0 |
0 |
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|
Color |
– |
off-white |
off-white |
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|
Flexural Strength |
MPa (lb/in2x103) |
180 |
-26 |
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|
Elastic Modulus |
GPa (lb/in2x106) |
151 |
-22 |
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|
Shear Modulus |
GPa (lb/in2x106) |
– |
– |
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|
Bulk Modulus |
GPa (lb/in2x106) |
– |
– |
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|
Compressive Strength |
MPa (lb/in2x103) |
1310 |
-190 |
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|
Hardness |
Kg/mm2 |
1070 |
– |
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|
Fracture Toughness KIC |
MPa•m1/2 |
2 |
– |
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|
Maximum Use Temperature |
°C (°F) |
1650 |
-3000 |
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|
(no load) |
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|
Thermal |
|
|
|
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|
Thermal Conductivity |
W/m•°K (BTU•in/ft2•hr•°F) |
6 |
-42 |
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|
Coefficient of Thermal Expansion |
10–6/°C (10–6/°F) |
5.4 |
-3 |
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|
Electrical |
|
|
|
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|
Dielectric Strength |
ac-kv/mm (volts/mil) |
9.8 |
-245 |
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|
Dielectric Constant |
@ 1 MHz |
5.8 |
5.8 |
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|
Dissipation Factor |
@ 1 kHz |
0.003 |
0.003 |
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|
Volume Resistivity |
ohm•cm |
>1013 |
>1013 |
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