Hot-Salt Induced Degradation of a High Strength Silicon Nitride

The maintenance of mechanical strength to very high temperatures rendei advanced non-oxide ceramics good candidates for developing and future elevated temperature applications. Unfortunately, high temperature service environments contain a number of species that can act in an aggressive manner towards structural components and cause significant damage. The corrosion behaviour of a high strength, hot-pressed SijN4 was studied in a burner rig combustion environment. In the temperature range 1000 C to ...