Graphene derivative materials exhibit excellent mechanical and thermal properties, which have been extensively used to toughen ceramics and improve thermal shock resistance. To overcome the thermal agglomeration of graphene oxide (GO) during heating and drying process, ZrB₂-SiC particles decorated GO hybrid foam with uniformly anchored ceramic particles was synthesized by electrostatic self-assembly and liquid nitrogen-assisted freeze-drying process. Densified rGO/ZrB₂-SiC ceramics with varying microstructure, thermal physical and mechanical properties were obtained by adjusting the content of decorated ceramic particles. Although the flexural strength of rGO/ZrB₂-SiC ceramics have an attenuation compared with that of ZrB₂-SiC ceramic, the thermal conductivity, work of fracture and thermal shock resistance are greatly improved. rGO/ZrB₂-SiC ceramics exhibit delayed fracture and increasing R-curve behavior during the crack propagation. The novel preparation technology allows for the well dispersion of rGO in ZrB₂-SiC ceramics and can be easily extended to other ceramic or metal materials systems.

石墨烯衍生物材料具有出色的机械和热性能，已被广泛用于增韧陶瓷和提高抗热震性。为克服氧化石墨烯（GO）在加热和干燥过程中的热团聚作用，通过静电自组装和液氮辅助冷冻干燥工艺，合成了ZrB ₂ -SiC颗粒装饰均匀锚固陶瓷颗粒的GO杂化泡沫。通过调节装饰陶瓷颗粒的含量可以得到致密的rGO / ZrB ₂ -SiC陶瓷，它们具有不同的微观结构，热物理性能和机械性能。虽然RGO /的ZrB的抗弯强度₂ -SiC陶瓷具有的衰减与的ZrB相比₂-SiC陶瓷的导热系数，断裂功和抗热震性都大大提高。rGO / ZrB ₂ -SiC陶瓷在裂纹扩展过程中表现出延迟的断裂和增加的R曲线行为。新颖的制备技术可以使rGO很好地分散在ZrB ₂ -SiC陶瓷中，并且可以轻松地扩展到其他陶瓷或金属材料系统。