Cavitation Erosion Resistance Behavior of Some Refractory Ceramics

Abstract

Cavitation erosion application could be observed as dangerous phenomena which have large influence on engineering materials behavior and life time in working conditions. This phenomenon is related to fluid flow conditions, which could cause pits and defects formation resulting in mechanical properties degradation, as well as potential risk of failure of the part. In this paper results for cordierite and alumina (low cement high alumina castable, LCC), based refractories subjected to cavitation erosion testing will be presented. Testing of the samples will be according standard method, with stationary sample in ultrasonic vibratory method. Degradation of the samples will be monitored by mass and volume loss, as well as changes in morphological characteristics. Image analysis will be applied for pits characteristics (number, average diameter, area, roundness) determination.