5 November 2015 Detection of iron corrosion by terahertz time-domain spectroscopy
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Proceedings Volume 9795, Selected Papers of the Photoelectronic Technology Committee Conferences held June–July 2015; 97953J (2015) https://doi.org/10.1117/12.2214316
Event: Selected Proceedings of the Photoelectronic Technology Committee Conferences held June-July 2015, 2015, Hefei, Suzhou, and Harbin, China
Abstract
The iron tablets, which were exposed in salt spray with different periods, were investigated in the 0.2~2.0 THz using reflection-type terahertz time-domain spectroscopy (THz-TDS) in vacuum environment at room temperature. The sample signals are attenuated in comparison to the reference signals with increasing the corrosion time. The THz spectroscopy peak EP and reflectivity (R) of samples strongly depended on corrosion time t with EP ∝ t-1 and R ∝ t-1. The THz characteristics of iron sheets in salt spray indicate that reflection THz-TDS will contribute to the development of non-destructive testing of corrosion in pipelines.
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Hui Zhao, Hui Zhao, Di-bo Wu, Di-bo Wu, Hong-lei Zhan, Hong-lei Zhan, Qing Sun, Qing Sun, Kun Zhao, Kun Zhao, } "Detection of iron corrosion by terahertz time-domain spectroscopy", Proc. SPIE 9795, Selected Papers of the Photoelectronic Technology Committee Conferences held June–July 2015, 97953J (5 November 2015); doi: 10.1117/12.2214316; https://doi.org/10.1117/12.2214316
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