Effect of irradiation damage on corrosion of 4H-SiC in FLiNaK molten salt

Autor: Ming Tang, Long Yan, Wei Zhang, Hefei Huang, Bin Zhao, Jianjian Li, Gengwu Ji, Ruobing Xie, Qing Huang
Rok vydání: 2017
Předmět:
Zdroj: Corrosion Science. 125:194-197
ISSN: 0010-938X
DOI: 10.1016/j.corsci.2017.05.028
Popis: The corrosion behavior of 4H-SiC in the FLiNaK molten salt (650 °C), pre-irradiated with 70-keV Si ions to 2.5 dpa at 650 °C, was investigated in order to clarify the effect of irradiation on corrosion. The irradiated region of 4H-SiC is peeled off by the molten salt, and the corrosion depth is nearly consistent with the irradiation damage depth. Molten salt corrosion leads to the loss of Si element and the formation of carbon-rich phase in irradiated 4H-SiC surface. The broken of Si-C bonds induced by irradiation plays a key role in the irradiation-assisted corrosion of SiC.
Databáze: OpenAIRE