Copper Natural and Artificial Protector of Historical Ornamental Pieces
Keywords:
patrimonio histórico, piezas ornamentales, pátinas artificiales y naturales, conservaciónAbstract
In the construction of ornamental pieces and objects belonging to historical and archaeological heritage have been used copper and its alloys for their ability to form protective film against corrosion under oxidizing atmospheric conditions. The films may be the result of natural or artificial attack on the metal substrate and sometimes are produced as effectively or surface finish to achieve artificial aging in new parts of artistic value. Under certain environmental factors (temperature, humidity, atmospheric pollutants, natural, anthropogenic, rain, sunlight), they may form other compounds originate the so-called “green patina” which is aesthetically pleasing, and generally consisting of sulphates, nitrates, carbonates, chlorides , etc. Due to the importance of the importance of these protective films different production techniques of artificial and natural films are analyzed in conjunction with cleaning methods on the surface of different pieces of cultural heritage. Finally, it states that it is for ornamental metal parts and objects of historical/archaeological important to avoid as far as possible intervention procedures, which leads to the concept of preventive conservation, ensuring the integrity of the piece from the point of view physical, historical and archaeologically.
Downloads
References
Barboian, R. y E. B. Cliver 1986. Corrosion on the Statue of Liberty. Materials Performance 25: 80-81.
Cepero Acán, A. C. 2002. Recopilación de Materiales Científicos, Centro Nacional de Conservación, Restauración y Museología “Principios científicos del deterioro de los objetos de arte metálicos y de sus tratamientos de conservación”, II Parte: Los principios de la limpieza y conservación de los objetos de arte metálicos. (CENCREM), (CD Rom), La Habana, Cuba .
Cortés, J. F. y F. J. Rodriguez 2002 Effect of relative humidity on the formation of artificial patina on copper substrate. Procceddings 15th International Corrosion Congress, Frontiers in Corrosion Science and Technology, paper 657 (CD Rom): 3781-3785, Granada, España.
Giudice, C. 2003. Patrimonio Cultural.: limpeza, consolidación y pretratamiento con biocidas. 1º Jornadas Iberoamericanas sobre biodeterioro del patrimonio cultural iberoamericano. Prevención, restauración y preservación. CYTED, Colombia.
Herrera Quintero, L. K., Guiamet P. y C. A. Giudice 2009. Pátinas protectoras del cobre en esculturas y piezas ornamentales del patrimonio cultural. 1er. Congreso Iberoamericano y VIII Jornadas Técnicas de Restauración y Conservación del Patrimonio, La Plata, Argentina. (CD Rom)
Lago, D., Miranda L. y L. de Sathler 2002. Artificial patina process applied to bronze structures under climates conditions of Río de Janeiro City. Procceddings 15th International Corrosion Congress, Frontiers in Corrosion Science and Technology, paper 526 (CD Rom): 3136-3143, Granada, España.
Marabelli, M. 1987. Conservation of Metal Statuary and Architectural Decoration in Open-Air Exposure, ICCROM, Roma.
Virtanen, J., Aromaa J., Forsén O. y T. Korpinen 2002. Durability of artificial patina on copper. Procceddings 15th International Corrosion Congress, Frontiers in Corrosion Science and Technology, paper 041, (CD Rom): 697-702, Granada, España.
Downloads
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Copyright Notice
In order to avoid plagiarism and self-plagiarism, a document signed by the authors must be sent, together with the manuscript and supplementary material, guaranteeing the originality and unpublished character of the manuscript. All the received manuscripts and evaluations information are confidential, and the Editorial Committee undertakes not to reveal it to anyone other than those involved in the evaluation process, according to the double-blind modality.
