Chromophore behaviour of iron, copper, cobalt and antimony in ancient tile, faience and porcelain glazes plus archaeological glass beads

An overview on X-ray absorption near-edge spectroscopy studies

M. Ondina Figueiredo, João P. Veiga, Teresa P. Silva

Research output: Contribution to journalArticle

Abstract

The modern X-ray sources available at large-scale installation facilities allow for the study of materials through powerful chemical and structural characterization techniques, particularly X-ray absorption spectroscopy. Along the last decade, the non-destructive characterization of a diversity of cultural materials - glazed ceramics (decorated tiles, faiences, porcelains) and glasses (archaeological glass beads) - as well as pigmenting natural materials, has been performed at the ESRF (European Synchrotron Radiation Facility) in Grenoble/France with the support of EU. The electronic situation of chromophore ions and fuser metals was assessed by analyzing the details observed in X-ray near-edge absorption curves (XANES spectra) collected from the subject elements. A brief overview is presented on recently published results.

Original languageEnglish
Pages (from-to)124-127
Number of pages4
JournalCiencia e Tecnologia dos Materiais
Volume24
Issue number3-4
Publication statusPublished - 1 Dec 2012

Fingerprint

Antimony
Glazes
Dental Porcelain
Porcelain
X ray absorption
Chromophores
Tile
Cobalt
Copper
Iron
Spectroscopy
X rays
Glass
X ray absorption spectroscopy
Ceramic materials
Synchrotron radiation
Metals
Ions

Keywords

  • Chromophore elements
  • Glazes
  • Tiles
  • XANES

Cite this

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