New Technology for Increasing Through-Life Reliability of Ceramics Components Using Self-Crack-Healing Ability
Figure 11
Results of bending tests and fatigue tests on Si3N4/SiC(p) at healing temperatures between 1173 K and 1473 K. Cyclic stress during crack healing: maximum stress = 210 MPa, stress ratio = 0.2, frequency = 5 Hz. Asterisk indicates that fracture occurred from outside the crack-healed zone, indicating that the crack-healed zone exhibited higher strength than that of the base material.