Chemical Engineering Department and Grand Technion Energy Program, Technion - Israel Institute of Technology, Haifa, 3200003, Israel.
Adv Mater. 2018 Oct;30(41):e1706369. doi: 10.1002/adma.201706369. Epub 2018 Jul 15.
Electric-field-assisted sintering of ceramic materials is under considerable attention during recent years. The current research is reviewed with a focus on mechanism research. Research of the mass transfer mechanisms in flash sintering (FS) is under debate during recent years. The research yields three main proposed mechanisms: nucleation due to movement of charged defects, Joule heating runaway, and electrochemical reactions. These are critically presented and discussed. Unlike FS, the mechanism of field-assisted sintering technologies (FAST) of ceramics is well agreed upon. However, recent studies challenge even this perception with new approaches, which are presented here. New technological and methodological developments in both FS and FAST/spark plasma sintering are also presented.
近年来，电场辅助烧结陶瓷材料受到了广泛关注。本文主要针对其机制研究进行了综述。近年来，对闪烧（FS）中传质机制的研究备受争议。研究提出了三种主要的机制：带电缺陷的运动导致成核、焦耳加热失控和电化学反应。这些机制被批判性地提出并讨论。与 FS 不同，陶瓷场辅助烧结技术（FAST）的机制已经得到广泛认可。然而，最近的研究甚至对这一认识提出了挑战，提出了新的方法，本文对此进行了介绍。还介绍了 FS 和 FAST/火花等离子烧结新技术和新方法的发展。
