Flash-Sintering Mechanism Studied Through Interrupted Experiments,Advanced Engineering Materials

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Flash-Sintering Mechanism Studied Through Interrupted Experiments
Advanced Engineering Materials ( IF 3.4 ) Pub Date : 2021-03-18 , DOI: 10.1002/adem.202001499
Mattan Ze’ev Becker ₁ , Sioma Baltianski ₁ , Larisa Popilevsky ₂ , Rinat Attias ₁ , Tanmoy Paul ₁ , Yoed Tsur ₃

Affiliation

Herein, the mass-transfer mechanism of flash sintering during the transient stage is examined using an in-house-made flash and quench (FQ) system. Visual findings of samples during and after FQ experiments and high-resolution electron microscopy are given. Many new observations regarding the flash-sintering nature are presented and discussed. Samples that underwent FQ experiments either show no sign of sintering or local sintering and grain growth due to a hotspot. These findings aid in untying of the two phenomena. Electron microscopy imaging of flash and quenched samples shows atypical microstructures. Such microstructural anomalies include sintering, massive grain growth, and visual findings on the surface. These findings establish flash sintering as a set of phenomena, caused by an abrupt and local increase in temperature (a “flash event”), where only one of which is sintering.

中文翻译：

通过间断实验研究闪光烧结机制

在此，使用内部制造的快速淬火 (FQ) 系统检查瞬态阶段快速烧结的传质机制。给出了 FQ 实验和高分辨率电子显微镜期间和之后样品的视觉发现。提出并讨论了许多关于闪烧性质的新观察结果。经历 FQ 实验的样品要么没有出现烧结迹象，要么由于热点而出现局部烧结和晶粒生长。这些发现有助于解开这两种现象。闪光和淬火样品的电子显微镜成像显示了非典型的微观结构。此类微观结构异常包括烧结、大量晶粒生长和表面上的视觉发现。这些发现将闪光烧结确定为一组现象，由温度的突然和局部升高（“闪光事件”）引起，

更新日期：2021-03-18

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