High Temperature Creep Properties of Sialon Ceramics (2)

Abstract

The fatigue and creep strain behavior of sintered sialons under the cyclic load at 1200°C and 1350°C was investigated. The load-unload cyclic tests were carried out by moving the weight of the creep-testing machine vertically. In unloading periods of the cyclic loading test, there was the pseudo creep-recovery behavior. But, there was no difference in the creep strain related to the total loading time between static and cyclic loading. Furthermore, the fatigue life under the cyclic stress was almost the same as that under the static stress.