Fig. 6: 3D-printed ceramic/ceramic composites for EMWA.

a polarization mechanism and b the reflection loss of SiC/SiOC composites49, c the reflection loss of SiC/Si3N4 composites after 4 PIP cycles65, d the reflection loss of SiC/Si3N4 composites with TiO2 infiltration65, e the reflection loss of SiCnw/Si3N4 composites after 3 PIP cycles66, f the reflection loss of SiCnw/Si3N4 composites with different annealing temperatures67.