About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Manufacturing and Processing of Advanced Ceramic Materials
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Presentation Title |
Ultrafast Sintering with and without Electric Fields and Electrochemically Controlled Microstructural Evolution |
Author(s) |
Jian Luo |
On-Site Speaker (Planned) |
Jian Luo |
Abstract Scope |
This talk will first review our recent studies on understanding the scientific questions and technological opportunities of flash sintering [Scripta 146: 260 (2018); MRS Bulletin 46: 26 (2021)]. We originally proposed that flash sintering generally starts a thermal runaway [Acta 94:87 (2015)], but it can also be activated by bulk phase and grain boundary complexion transitions [Acta 181:544 (2019)]. We further proved that ultrafast densification is enabled by ultrahigh heating rates of ~100 K/s [Acta 125:465 (2017)]. Subsequently, a generic ultrafast high-temperature sintering was reported in a collaborative study [Science 368:521 (2020)]. Recent research discovered electrochemically induced grain boundary transitions [Nature Communications 12:2374 (2021)]. A series of on-going studies on electrochemically controlled microstructural evolution will be disused in detail [unpublished results]. |