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Evaluation of Atmospheric Corrosion of Two Bells from Campeche´s Cultural Heritage

Published online by Cambridge University Press:  21 May 2014

L. H. Mendoza-Cruz ,
J. Reyes Trujeque ,
T. Pérez López ,
D. Arano Recio ,
P. Quintana Owen  and
R. Orozco Cruz
L. H. Mendoza-Cruz
Affiliation:
Centro de Investigación en Corrosión-Universidad Autónoma de Campeche, Av. Agustín Melgar s/n, C.P. 24039, San Francisco de Campeche, Campeche, Mexico. e-mail: javreyes@uacam.mx
J. Reyes Trujeque
Affiliation:
Centro de Investigación en Corrosión-Universidad Autónoma de Campeche, Av. Agustín Melgar s/n, C.P. 24039, San Francisco de Campeche, Campeche, Mexico. e-mail: javreyes@uacam.mx
T. Pérez López
Affiliation:
Centro de Investigación en Corrosión-Universidad Autónoma de Campeche, Av. Agustín Melgar s/n, C.P. 24039, San Francisco de Campeche, Campeche, Mexico. e-mail: javreyes@uacam.mx
D. Arano Recio
Affiliation:
Sección de restauración, Centro INAH Campeche, Mexico
P. Quintana Owen
Affiliation:
Departamento de Física Aplicada. CINVESTAV-Unidad Mérida, Mexico
R. Orozco Cruz
Affiliation:
Instituto de ingeniería de la Universidad Veracruzana, Mexico
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Abstract

In this study electrochemical and surface analysis were carried out in order to provide preliminary information to diagnose the state of conservation of two bronze bells from two Colonial religious building from San Francisco de Campeche City: The Cathedral of Nuestra Señora de la Purísima Concepción and the Ex-temple of San José. Small corroded bronze samples were retired from each bell and analyzed by using optical microscopy in order to observe the distribution of the oxides over metal surface. Complementary XRD analysis was used to identify crystalline phases formed as a consequence of bells interaction with the urban tropical environment of this city. Electrochemical techniques such as linear polarization resistance (Rp) and potentiodynamic curve (CP) were conducted “in situ” in order to evaluate the behavior of bell bronze patinas under the action of two artificial solutions that recreate typical electrolyte formed over corroded metal surfaces in urban environments.

Keywords

corrosionalloymicrostructure
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1618: Symposium 8A – Cultural Heritage and Archaeological Issues in Materials Science , 2014 , pp. 217 - 225
Copyright
Copyright © Materials Research Society 2014 

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References

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