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MC2249 Mullite Plate, Silicate Ceramic Plate

  • Catalog No. MC2249
  • Color Off-white
  • Shape Plate
  • Thermal Conductivity 6 W/m·K
  • Dielectric Strength 9.8 ac-kv/mm

Mullite Plate Description

Mullite plate is made of silicate ceramic. The main crystal phase of the mullite plate is 3Al2O3·2SiO2. It has a low thermal expansion, good mechanical strength, and resilience at elevated temperatures. Raw mullite materials are easily obtained and 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.

Advanced Ceramic Materials (ACM) is a trusted supplier of mullite ceramic plates.

Mullite Plate Specifications

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 Conductivity W/m•°K (BTU•in/ft2•hr•°F) 6 -42
Coefficient of Thermal Expansion 10–6/°C (10–6/°F) 5.4 -3
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

Mullite Plate Applications

Mullite ceramic plates have the following applications:

- Machining of components and toolings
- Protection tubes
- Realization of prototypes
- Manufacturing of small ceramic series
- Coil cores
- Electrical insulator
- Template of assembly
- Injectors, nozzles
- Vacuum parts
- Thermal insulators, inductive insulators
- Template of brazing and welding
- Sensors

Related Documents
Advanced Ceramic Materials Brochure
Technical brochure for Advanced Ceramic Materials, all grades. Revision March 2023.
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