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Mullite is characterised by its excellent thermal and thermal shock resistance as well as particularly good creep resistance. Its coefficient of thermal expansion is roughly equivalent to that of a silicon semiconductor chip. Due to its low thermal expansion and excellent thermal stability, mullite retains its shape and strength even at high temperatures, making it ideal for applications in high-temperature technology. In addition, mullite offers good electrical insulation and low thermal conductivity, making it an outstanding material for electrical applications.

Applications of mullite are diverse, ranging from high-temperature technology and electrical insulation to the refractory industry.

The most important properties of Mullite (3Al2O3, 2SiO2) in brief:

  • High strength and hardness
  • Chemical resistance
  • Low thermal expansion
  • Excellent thermal stability
  • Good electrical insulation
  • Low thermal conductivity

If you are interested in Mullite products or need more information, please feel free to contact us. Our experienced experts can help you select the right material for your application.

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Our mullite products