Development of strength evaluation method for high-pressure ceramic components

Takegami, Hiroaki ; Terada, Atsuhiko  ; Inagaki, Yoshiyuki

Since highly corrosive materials such as sulfuric and hydriodic acids are used in the IS process, JAEA has been developing a sulfuric acid decomposer made of silicon carbide (SiC). One of the key technological challenges for the practical use of a ceramic sulfuric acid decomposer made of SiC is to be licensed in accordance with the High Pressure Gas Safety Act. Since the strength of a ceramic material depends on its geometric form, etc., the strength evaluation method required for a pressure design is not established. In this paper, the minimum strength of SiC components was calculated by Monte Carlo simulation, and the minimum strength evaluation method of SiC components was developed by using the results of simulation. The method was confirmed by fracture test of tube model and reference data. of SiC components was developed by using the results of simulation. The method was confirmed by fracture test of tube model and reference data.