【摘要】 采用振荡热压烧结（HOP）和热压烧结（HP）工艺制备了ZrB₂–SiC陶瓷，研究了振荡压力对ZrB₂–SiC陶瓷致密化及力学性能的影响。结果表明，与采用HP工艺制备ZrB₂–SiC陶瓷相比，HOP工艺的致密化速率有显著提升；ZrB₂与SiC两相界面结合良好；HOP工艺制备的ZS30样品的硬度和断裂韧性分别达到了21.1 GPa和7.3MPa·m^1/2，较采用HP工艺在相同烧结参数下制备的试样有大幅提升。HOP在制备高性能ZrB₂–SiC陶瓷方面展现出良好发展前景。更多还原

【Abstract】 ZrB₂–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 ZrB₂–SiC ceramics was investigated. The results have shown that compared to using the HP process to fabricate ZrB₂–SiC ceramics, the densification rate of HOP process has been improved significantly, and the interface between ZrB₂ 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 ZrB₂–SiC ceramics.更多还原