陶瓷材料闪烧制备技术研究进展

Research Progress in Flash Sintering Technology of Ceramic Materials

陶瓷材料制备过程中,常规烧结需要很高的烧结温度以及较长的保温时间,实现材料致密化不仅能量消耗较大,效率低下,且长时间高温烧结也会带来晶粒长大问题,影响材料性能。近年来,一种名为"闪烧"的新型烧结技术被广泛报道,该技术不仅烧结温度低,保温时间短,且制备的陶瓷材料具有更加优异的微观形貌,引起了学术界的普遍关注。本文归纳了闪烧技术的研究进展,分别对闪烧技术的实验装置、技术参数、制备材料种类以及闪烧技术目前提出的机理进行介绍,分析了闪烧技术当前存在的问题并展望其前景,以期为继续发掘闪烧技术优势、扩展闪烧技术应用领域提供参考。

During the preparation of ceramic materials,conventional sintering requires high sintering temperatures and long holding times. To achieve densification of materials consumes a lot of energy and has low efficiency,but also a long-term high-temperature sintering can cause grain growth problems,affecting materials performance.In recent years,a new type of sintering technology called "flashing"has been widely reported.This technology not only has a low sintering temperature,but also has a short holding time,and the prepared ceramic material has a more excellent microscopic appearance,which has attracted widespread attention.This paper summarizes the research progress of flash sintering technology,introduces the experimental device,technical parameters,types of materials,and the mechanisms,and analyzes the current problems and prospects of flash technology,in order to continue to explore the advantages of the technology and to expand its the application.