Ascertaining the degradation state of ceramic tiles: A preliminary non-destructive step in view of conservation treatments

Teresa P. Silva; Maria-Ondina Figueiredo; Maria-Isabel Prudencio

doi:10.1016/j.clay.2013.06.013

Ascertaining the degradation state of ceramic tiles: A preliminary non-destructive step in view of conservation treatments

Teresa P. Silva, Maria-Ondina Figueiredo, Maria-Isabel Prudencio

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Conserving the cultural heritage is a general concern and the use of non-destructive techniques to characterize ancient materials is important Serious deterioration effects in environmentally exposed ancient glazed ceramic tiles arise from the development of micro-organisms (algae/fungi) within the pore system. Subsequent biodegradation processes are particularly harmful once the decorated glaze is damaged by exfoliation/detachment

Three case studies will be addressed: Portuguese polychrome decorated tiles from the interior of two churches (16th-17th century) and from the outdoor of a Palace (18th century). Small tile fragments were directly irradiated in a wavelength-dispersive X-ray fluorescence spectrometer for glaze chemical characterization and subsequently irradiated in a powder diffractometer to assess the phase constitution of both glaze and ceramic body.

Cleaning and conserving these ancient cultural artifacts involve a decontamination process applying innovative non-destructive techniques. The present work is intended as a contribution to diagnose the actual degradation state of ancient tiles in view of future decontamination actions using gamma radiation. (C) 2013 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	101-105
Number of pages	5
Journal	Applied Clay Science
Volume	82
Issue number	SI
DOIs	https://doi.org/10.1016/j.clay.2013.06.013
Publication status	Published - Sep 2013

Keywords

Ceramic tiles
16th-18th century polychrome glazes
Non-destructive characterization
X-ray techniques

Access to Document

10.1016/j.clay.2013.06.013

Cite this

@article{44ecb8d95d8c481bb0013d7a63dd1934,

title = "Ascertaining the degradation state of ceramic tiles: A preliminary non-destructive step in view of conservation treatments",

abstract = "Conserving the cultural heritage is a general concern and the use of non-destructive techniques to characterize ancient materials is important Serious deterioration effects in environmentally exposed ancient glazed ceramic tiles arise from the development of micro-organisms (algae/fungi) within the pore system. Subsequent biodegradation processes are particularly harmful once the decorated glaze is damaged by exfoliation/detachmentThree case studies will be addressed: Portuguese polychrome decorated tiles from the interior of two churches (16th-17th century) and from the outdoor of a Palace (18th century). Small tile fragments were directly irradiated in a wavelength-dispersive X-ray fluorescence spectrometer for glaze chemical characterization and subsequently irradiated in a powder diffractometer to assess the phase constitution of both glaze and ceramic body.Cleaning and conserving these ancient cultural artifacts involve a decontamination process applying innovative non-destructive techniques. The present work is intended as a contribution to diagnose the actual degradation state of ancient tiles in view of future decontamination actions using gamma radiation. (C) 2013 Elsevier B.V. All rights reserved.",

keywords = "Ceramic tiles, 16th-18th century polychrome glazes, Non-destructive characterization, X-ray techniques",

author = "Silva, {Teresa P.} and Maria-Ondina Figueiredo and Maria-Isabel Prudencio",

year = "2013",

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TY - JOUR

T1 - Ascertaining the degradation state of ceramic tiles

T2 - A preliminary non-destructive step in view of conservation treatments

AU - Silva, Teresa P.

AU - Figueiredo, Maria-Ondina

AU - Prudencio, Maria-Isabel

PY - 2013/9

Y1 - 2013/9

N2 - Conserving the cultural heritage is a general concern and the use of non-destructive techniques to characterize ancient materials is important Serious deterioration effects in environmentally exposed ancient glazed ceramic tiles arise from the development of micro-organisms (algae/fungi) within the pore system. Subsequent biodegradation processes are particularly harmful once the decorated glaze is damaged by exfoliation/detachmentThree case studies will be addressed: Portuguese polychrome decorated tiles from the interior of two churches (16th-17th century) and from the outdoor of a Palace (18th century). Small tile fragments were directly irradiated in a wavelength-dispersive X-ray fluorescence spectrometer for glaze chemical characterization and subsequently irradiated in a powder diffractometer to assess the phase constitution of both glaze and ceramic body.Cleaning and conserving these ancient cultural artifacts involve a decontamination process applying innovative non-destructive techniques. The present work is intended as a contribution to diagnose the actual degradation state of ancient tiles in view of future decontamination actions using gamma radiation. (C) 2013 Elsevier B.V. All rights reserved.

AB - Conserving the cultural heritage is a general concern and the use of non-destructive techniques to characterize ancient materials is important Serious deterioration effects in environmentally exposed ancient glazed ceramic tiles arise from the development of micro-organisms (algae/fungi) within the pore system. Subsequent biodegradation processes are particularly harmful once the decorated glaze is damaged by exfoliation/detachmentThree case studies will be addressed: Portuguese polychrome decorated tiles from the interior of two churches (16th-17th century) and from the outdoor of a Palace (18th century). Small tile fragments were directly irradiated in a wavelength-dispersive X-ray fluorescence spectrometer for glaze chemical characterization and subsequently irradiated in a powder diffractometer to assess the phase constitution of both glaze and ceramic body.Cleaning and conserving these ancient cultural artifacts involve a decontamination process applying innovative non-destructive techniques. The present work is intended as a contribution to diagnose the actual degradation state of ancient tiles in view of future decontamination actions using gamma radiation. (C) 2013 Elsevier B.V. All rights reserved.

KW - Ceramic tiles

KW - 16th-18th century polychrome glazes

KW - Non-destructive characterization

KW - X-ray techniques

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DO - 10.1016/j.clay.2013.06.013

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