Today, ceramic materials are primarily used for feeding in the fuel gasses and for removing the exhaust gasses as well as for the combustion and as heat exchangers in modern burners. In addition to the high temperature stability and thermal shock stability which is required on account of this, the materials used also have to have a high oxidation stability, a high resistance to heat, a high dimensional stability and good thermal conductivity.

Modern manufacturing methods have ensured that almost any required geometry can be implemented. For this reason, the typical pipes in burners such as flame tubes, or jacketed jet tubes made of silicon-infiltrated silicon carbide as the base material are increasingly being used. This material is characterized by the following properties:

• No porosity, on account of this very good oxidation stability and corrosion resistance
• Very good thermal fatigue resistance
• Natural stability up to the limit temperature for application of the material (very high fatigue endurance, no pipe bending in use on account of this reduced maintenance effort)
• Gas tightness
• High thermal conductivity
• Low mass
• High operational reliability and economic efficiency
• High efficiency