Ancient Portuguese Ceramic Wall Tiles (“Azulejos”): Characterization of the Glaze and Ceramic Pigments

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Ancient ceramic wall tiles, called “azulejo”, firstly used on Portuguese churches, monasteries and palaces (15-18th century) have progressively been used in particular houses till the last century. These tiles and its use in huge decorative panels can be considered as a precious but fragile cultural heritage from Brazil to India, in several countries influenced by Portuguese culture. Morphologically, these tiles are composed by a porous clay-based ceramic body, the terracotta, covered by a protective glassy phase, the glaze. As artistic paintings, these murals incorporated various kinds of pigments in the glaze layer to create a pictorial impact on the walls of rich palaces or churches, real and durable monumental works-of-art. In the 21st century, degradation marks are visible on these ceramic tiles because of their use under corrosive conditions (moisture, atmospheric cycles…) along centuries. In order to promote their conservation and enhance their restoration, the physical-chemical characterization of the azulejos is performed in the present work, using mainly non-destructive processes like micro-Raman spectroscopy or X-Ray diffraction. In particular, Raman spectroscopy allows the detection of some nano/microcrystals present in the amorphous glaze due to pigments or opacifying agents or related to the elaboration process of the azulejo. Based on the observation of various selected fragments, one states that very few pigments have been used as colouring agents in this ceramic art during 17-18th centuries. Thus, the relationship between the different colours, the introduced pigments and the structural aspects of the glass will be focused. Some features related with the ancient ceramic technology will also be discussed.

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Periodical:

Pages:

79-88

DOI:

10.4028/www.scientific.net/JNanoR.8.79

Citation:

M. Pereira et al., "Ancient Portuguese Ceramic Wall Tiles (“Azulejos”): Characterization of the Glaze and Ceramic Pigments", Journal of Nano Research, Vol. 8, pp. 79-88, 2009

Online since:

September 2009

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$38.00

[1] J. Meco : O azulejo em Portugal, (Publicações Alfa, Portugal 1989).

[2] J. Meco, in : Les métamorphoses de l'azur: L'art de l'azulejo dans le monde latin, Ars Latina, Paris, (2002) edited by Elisabeth de Balanda and Armando Uribe Echeverria pp.29-39.

[3] J. Meco : L'art de l'azulejo au Portugal, (Bertrand Editions, Portugal 1985).

[4] A. Sampaio e Castro and L. Sebastian, A faiança de Revestimento: séculos XVII e XVIII (intervenção arqueológica 1998-2001), in Património Estudos, Conservação e Restauro de Património Móvel e Integrado, IPPAR 2003 p.168.

[5] A.P. Carvalho, M.F. Vaz, M.J. Samora and J. Pires, Advanced Materials Forum III, Parts 1 and 2 - Materials Science Forum Part 1-2 Vol. 514-516 (2006), p.1648.

[6] A. Ferreira do Amaral, A. Maria Reis da Mata, I. Dias Costa, J Carlos dos Santos and M. João Dias Costa, Mosteiro São Martinho de Tibães - Historias de recuperação, in Conservação e Restauro de Património Móvel e Integrado, IPPAR 2003 p.33.

[7] G. Bandini, in : Les métamorphoses de l'azur: L'art de l'azulejo dans le monde latin, Ars Latina, Paris, (2002) edited by Elisabeth de Balanda and Armando Uribe Echeverria pp.409-428.

[8] H. Scholze : Le verre, (Institut du Verre, France 1980).

[9] M. Pereira, T. de Lacerda-Aroso, A. Mata, Ph. Colomban, L.C. Alves and E. Alves : submitted to Journal of European Ceramic Society (2008).

[10] Ph. Colomban and C. Truong: J. Raman Spectrosc. Vol. 35 (2004), p.195.

[11] Ph. Colomban, A. Tournie and L. Bellot-Gurlet: J. Raman Spectrosc. Vol. 37 (2006), p.841. See also : Ph. Colomban, J. Non-Crystalline Solids, Vol. 322 (2003), p.180.

DOI: 10.1002/jrs.1515

[12] Ph. Colomban, V. Milande and L. Le Bihan: J. Raman Spectrosc. Vol. 35 (2004), p.527.

[13] Ph. Colomban and F. Treppoz: J. Raman Spectrosc. Vol. 32 (2001), p.93.

[14] Ph. Colomban, G. Sagon and X. Faurel: J. Raman Spectrosc. Vol. 32 (2001), p.351.

[15] Ph. Colomban and A. Tournié: J. of Cultural Heritage Vol. 8 (2007), p.242.

[16] C. Sandalinas, S. Ruiz-Moreno, A. Lopez-Gil and J. Miralles: J. Raman Spectrosc. Vol. 37 (2006), p.1146.

[17] M.C. Marco de Lucas, F. Moncada and J. Rosen: J. Raman Spectrosc. Vol. 37 (2006), p.1154.

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