Droplet impingement method to measure the surface tension of molten zirconium oxide
Droplet impingement method to measure the surface tension of molten zirconium oxide
复制标题
液滴撞击法测量熔融氧化锆的表面张力
DOI：
10.1080/00223131.2020.1736681
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发表时间：
2020
影响因子：
1.2
通讯作者：
Yuji Ohishi
中科院分区：
文献类型：
--
作者：
Toshiki Kondo;Hiroaki Muta;Yuji Ohishi
测量熔融 ZrO2 的表面张力对于确定核电站严重事故的进展至关重要。然而，由于液态ZrO2的熔点高、反应活性高、蒸气压高等因素，目前尚未发表有关其表面张力的实验报告。因此，本研究采用液滴撞击法测量ZrO2的表面张力，有助于在极短的时间内确定熔融氧化物的表面张力。可以确定撞击行为以分析图像中的表面张力。在 2988 K（ZrO2 的熔点）时，表面张力约为 0.91 N/m，该值与使用振荡液滴法估算的数据一致。与过去有关熔融 Zr-O 体系表面张力的报告相比，熔融 Zr 的表面张力随着氧化而降低。
Measuring the surface tension of molten ZrO2 is critical to determine the progression of a severe accident in a nuclear power plant. However, no experimental reports have been published pertaining to the surface tension of liquid ZrO2 because of its high melting point, high reactivity, and high vapor pressure, among other factors. Thus, in this study, the surface tension of ZrO2 was measured by using the droplet impingement method, which can help determine the surface tension of molten oxides in an extremely short time. The impingement behavior could be determined to analyze the surface tension from the image. The surface tension was approximately 0.91 N/m at 2988 K, which is the melting point of ZrO2, and this value was consistent with the data estimated using the oscillation droplet method. Compared with a past report regarding the surface tension of the molten Zr-O system, the surface tension of molten Zr was noted to reduce with oxidation.