The use of electrochemical impedance spectroscopy in the evaluation of coatings for outdoor bronze

被引：30

作者：

Ellingson, LA

Shedlosky, TJ

Bierwagen, GP

de la Rie, ER

Brostoff, LB

机构：

[1] N Dakota State Univ, Dept Polymers & Coatings, Fargo, ND 58105 USA

[2] CIMA Labs Inc, Minneapolis, MN USA

来源：

STUDIES IN CONSERVATION | 2004年 / 49卷 / 01期

关键词：

D O I：

10.1179/sic.2004.49.1.53

中图分类号：

K85 [文物考古];

学科分类号：

0601 ;

摘要：

Electrochemical impedance spectroscopy (EIS) is a technique that quantitatively measures the amount of corrosion protection provided by a coating to a metal substrate. This article illustrates the theory of EIS along with its potential for application in the evaluation of protective coatings for outdoor bronze sculpture and ornamentation. Three coating systems were evaluated on of monumental cast bronze: a microcrystalline wax; the methyl methacrylate copolymer sold under the trade name Incralac; and an acrylic/acrylic urethane topcoat. Each coating system was aged using accelerated weathering and evaluated via EIS. This information was then used to calculate the impedance modulus of the samples, which is displayed in Bode plots and interpreted in terms Of coating performance.

引用

页码：53 / 62

页数：10

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