Corrosion of ancient Chinese bronze fragments from different periods and protective effect of menthol coating

Corrosion Communications Pub Date : 2023-12-01 DOI:10.1016/j.corcom.2023.03.006

Tianliang Zhao , Lu Zhao , Yujun Feng , Qun Luo , Jiarang Zhong , Qian Li

{"title":"Corrosion of ancient Chinese bronze fragments from different periods and protective effect of menthol coating","authors":"Tianliang Zhao , Lu Zhao , Yujun Feng , Qun Luo , Jiarang Zhong , Qian Li","doi":"10.1016/j.corcom.2023.03.006","DOIUrl":null,"url":null,"abstract":"<div>Chinese ancient bronze fragments from three periods of history were investigated in terms of the characteristics of substrate and patina. The non-destructive protective effect of menthol coating was verified. Patinas on the fragments of the Spring and Autumn period, Warring State period, and Han Dynasty all contain the major components CuCl2·3Cu(OH)2 and Cu2(OH)2CO3. The residual components, some oxides and chlorides of Pb and Sn, show no evident distribution trend in the patinas except PbCl2 is segregated beneath the patina of the Han dynasty fragment. Menthol coating shows a consistently protective ability for these patinated fragments. However, its sublimation is strongly affected by ambient temperature and relative humidity (RH). Menthol coating with an initial thickness of ∼500 µm could effectively protect the fragments for 328 h under 23 ℃ with 54% RH while for only 42 and 2 h respectively under 25 ℃with 100% RH and 35 ℃ with 100% RH.</div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"12 ","pages":"Pages 46-57"},"PeriodicalIF":0.0000,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667266923000439/pdfft?md5=6e91d26f0af33e60fa86684640ce6f48&pid=1-s2.0-S2667266923000439-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Corrosion Communications","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2667266923000439","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

Chinese ancient bronze fragments from three periods of history were investigated in terms of the characteristics of substrate and patina. The non-destructive protective effect of menthol coating was verified. Patinas on the fragments of the Spring and Autumn period, Warring State period, and Han Dynasty all contain the major components CuCl₂·3Cu(OH)₂ and Cu₂(OH)₂CO₃. The residual components, some oxides and chlorides of Pb and Sn, show no evident distribution trend in the patinas except PbCl₂ is segregated beneath the patina of the Han dynasty fragment. Menthol coating shows a consistently protective ability for these patinated fragments. However, its sublimation is strongly affected by ambient temperature and relative humidity (RH). Menthol coating with an initial thickness of ∼500 µm could effectively protect the fragments for 328 h under 23 ℃ with 54% RH while for only 42 and 2 h respectively under 25 ℃with 100% RH and 35 ℃ with 100% RH.

查看原文本刊更多论文

不同时期中国古代青铜碎片的腐蚀及薄荷醇涂层的保护作用

从基材特征和铜绿特征两个方面对中国三个历史时期的古代青铜器碎片进行了研究。验证了薄荷醇涂层的无损防护效果。春秋、战国、汉代碎片上的铜绿都含有主要成分CuCl2·3Cu(OH)2和Cu2(OH)2CO3。除PbCl2偏析外，铜绿中Pb、Sn的部分氧化物和氯化物在铜绿中的分布趋势不明显。薄荷醇涂层对这些染色的碎片显示出一致的保护能力。然而，它的升华受到环境温度和相对湿度(RH)的强烈影响。在23℃、54% RH条件下，初始厚度为~ 500µm的薄荷醇包被可有效保护片段328 h，而在25℃、100% RH和35℃、100% RH条件下，分别仅保护片段42 h和2 h。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Corrosion Communications

CiteScore

7.30

自引率

0.00%

发文量