ZrB

2

–SiC ceramics were prepared using hot oscillatory pressing (HOP) and hot pressing (HP) processes

and the effect of oscillatory pressure on the densification and mechanical properties of ZrB

2

–SiC ceramics was investigated. The results have shown that compared to using the HP process to fabricate ZrB

2

–SiC ceramics

the densification rate of HOP process has been improved significantly

and the interface between ZrB

2

and SiC is well bonded; The hardness and fracture toughness of the ZS30 sample prepared by the HOP process reached 21.1 GPa and 7.3 MPa·m

1/2

respectively

which were significantly improved compared to the samples prepared by the HP process under the same sintering parameters. HOP has shown good development prospects

in the preparation of high-performance ZrB

2

–SiC ceramics.