In this paper, it is demonstrated that in an oxygen-enriched environment, the oxygen partial pressure affects the onset temperature of flash sintering of 3 mol% yttria-stabilized zirconia (3YSZ). Flash sintering experiments were performed with oxygen partial pressures in the range of 0.25–1 atm. The results indicate that the onset temperature increased by increasing oxygen partial pressure. According to the plots of the conductivity as a function of temperature, the oxygen partial pressure might affect the onset temperature, by changing the conductivity in the pre-flash stage. Combined to the analysis of the law of mass action, it was established that electron conduction might also represent a critical parameter during the pre-flash stage of flash sintering, excluding the oxygen vacancy conduction.

本文证明，在富氧环境中，氧分压会影响3 mol％氧化钇稳定的氧化锆（3YSZ）的快速烧结开始温度。闪蒸烧结实验是在氧气分压为0.25-1 atm的范围内进行的。结果表明，起始温度通过增加氧分压而升高。根据电导率随温度变化的曲线图，通过改变预闪蒸阶段的电导率，氧分压可能会影响起始温度。结合对质量作用定律的分析，可以确定，电子传导在闪蒸烧结的预闪蒸阶段也可能代表着一个关键参数，但氧空位传导除外。