摘要
聚合物前驱体裂解转化法是制备陶瓷材料的重要方法之一,裂解是该工艺中不可或缺的步骤.传统的陶瓷前驱体热裂解方法存在升降温速率慢、工艺时间长、能耗高等问题.激光裂解、微波裂解、放电等离子烧结等新技术因具有升降温速率快、能量消耗低等优势,近年来受到材料领域研究者的关注.本文总结了快速裂解方法用于硅基前驱体转化陶瓷方面的研究进展,阐述了裂解新技术在高性能陶瓷材料制备中的技术优势.
Abstract
The polymer precursor derived ceramics route is one of the important ways for the preparation of ceramics,and py-rolysis is absolutely necessary in the process.The traditional thermal pyrolysis suffers from slow heating/cooling rate,long pro-cessing time,and high energy consumption.In recent years,new technologies,including laser pyrolysis,microwave treatment,and discharge plasma sintering,have attracted the attention in the researchers due to the advantages of fast heating/cooling rate and low energy consumption.This paper summarizes the research progress in rapid pyrolysis in PDCs.The advantages of the new technologies in the preparation of high-performance ceramics are also discussed.
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