Efficient multiscale strategy for toughening HfB₂ ceramics: A heterogeneous ceramic–metal layered architecture

A multiscale structural design was innovatively adopted herein to increase the toughness of monolithic HfB 2 ceramics. SiC whiskers (SiC w ) and graphene oxide (GO) were used as fillers for the HfB 2 matrix, whereas a ductile W foil was introduced as an interlayer to synthesize laminated HfB 2 ‐SiC w ‐rGO/W ceramics. Monolithic HfB 2 ‐SiC p (particulate) and laminated HfB 2 ‐SiC p /W ceramics were prepared using the same routes and used as...