Abstract ‘Thermal runaway’ was the most popular mechanism in flash sintering, but this theory was inappropriate under high electric field. In this paper, we described electric discharge and breakdown phenomena in experiment to verify this point. And water moisture was found an important role in conducting electric discharge, that increasing moisture content of samples decreased the onset electric field of flash sintering and as low as 1628 V/cm of onset electric field was realized in this paper. With high electric field that can induce electric discharge in the sample, the flash sintering can be induced at room temperature and atmosphere.

中文翻译：

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高电场闪烧机理：从放电和击穿看

摘要 “热失控”是闪光烧结中最流行的机理，但该理论在高电场下是不合适的。在本文中，我们通过实验描述了放电和击穿现象来验证这一点。并且发现水分在进行放电中起重要作用，增加样品的水分含量降低了闪烧的起始电场，本文实现了低至1628 V/cm的起始电场。具有可在样品中引起放电的高电场，可在室温和气氛下引起闪烧。