Corrosion of iron archaeological artefacts in soil: characterisation of the corrosion system
Corrosion of iron archaeological artefacts in soil: characterisation of the corrosion system
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DOI：
10.1016/j.corsci.2004.05.029
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发表时间：
2005-02-01
影响因子：
8.3
通讯作者：
Beranger, G
中科院分区：
文献类型：
--
作者：
Neff, D;Dillmann, P;Beranger, G
本文对40件埋藏于土壤中几个世纪的考古铁器进行了研究。用黏附土取样，并作截面图。使用的表征技术有光学显微镜和电子显微镜，EDS耦合SEM， EPMA，同步辐射下的微xrd，微拉曼光谱。提出了一个特定的词汇来描述腐蚀布局。最确定的腐蚀布局是由嵌入针铁矿基质中的几个10微米的磁铁矿和/或磁铁矿区域组成的。为了解释这一现象，提出了一种腐蚀机理。当土壤水含有较多的氯或碳酸盐时，一些特定的腐蚀产物出现为赤球石、氯氧化物和菱铁矿。(C) 2004 Elsevier Ltd.版权所有。
This paper presents a study made on 40 iron archaeological artefacts buried in soil during several centuries. Samples were taken with the adhering soil and cross-sections were made. The used characterisation techniques are optical and electronic microscopies, EDS coupled to SEM, EPMA, micro-XRD under synchrotron radiation, micro-Raman spectrometry. A specific vocabulary is proposed to describe the corrosion layout. The most identified corrosion layout is made of several ten micrometers zones of magnetite and/or maghemite embedded in a goethite matrix. A corrosion mechanism is proposed in order to explain this profile. When the soil water contains more chlorine or carbonates, some specific corrosion product appear as akaganeite, oxychlorides and siderite. (C) 2004 Elsevier Ltd. All rights reserved.