Nature of lead patination

被引：25

作者：

Black, L ^{[1
]}

Allen, GC ^{[1
]}

机构：

[1] Univ Bristol, Interface Anal Ctr, Bristol BS2 8BS, Avon, England

来源：

BRITISH CORROSION JOURNAL | 1999年 / 34卷 / 03期

关键词：

D O I：

10.1179/000705999101500833

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A study of the factors influencing lead patination is reported. Roman spectroscopy has been used to determine the composition of patinas, while weight gain measurements and scanning electron microscopy have followed their physical development. The mechanism of the patination process follows a route during which the initially formed oxide film converts to a basic lead carbonate (hydrocerussite, 2PbCO(3). Pb(OH)(2)), which, under the influence of sulphur dioxide, ultimately forms lead sulphate, via intermediate tetrabasic lead sulphate and lead sulphite phases. Levels of atmospheric pollution were observed to play an important role in the rate of formation of the stable end product.

引用

页码：192 / 197

页数：6

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