脱氯处理对出土铁器腐蚀速率的影响

发布时间：2018-07-02 20:00

  本文选题：脱氯 + 腐蚀速率　； 参考：《文物保护与考古科学》2014年03期

【摘要】：正脱盐处理可以降低考古出土铁器的氯离子浓度,提高文物的稳定性。然而,对脱氯处理和铁器腐蚀速率之间的关系,从未进行过定量的研究分析。英国卡迪夫大学考古与文物保护学院和大英博物馆文物保护与科学研究部的研究人员选用英国3个不同考古遗址发掘出土的35根铁钉,制作了66个样品进行了实验。在室温条件(20±3)℃下,用0.1mol/L的氮气脱氧NaOH溶液(dNaOH)或0.1mol/L NaOH/0.05mol/L Na2SO3溶液(AS20)对其中的35个样品进行了脱氯处理,另外31个样品未作处理。在75℃、75%RH的环
[Abstract]:The positive desalination treatment can reduce the chloride ion concentration of the excavated iron and improve the stability of the archaeological relics. However, the relationship between dechlorination and iron corrosion rate has never been quantitatively studied. Researchers from the College of Archaeology and Heritage Conservation of Cardiff University and the Department of Heritage Conservation and Scientific Research of the British Museum made 66 samples from 35 iron nails excavated from three different archaeological sites in Britain. At room temperature (20 卤3) 鈩，

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