The combined use of Raman and micro-X-ray diffraction analysis in the study of archaeological glass beads
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10451/36609 |
Resumo: | This study proposes a new nondestructive methodology that combines micro‐Raman spectroscopy and micro‐X‐ray diffraction (μ‐XRD), complemented by variable pressure scanning electron microscopy coupled with energy dispersive X‐ray spectrometry, to determine the composition of glass artifacts and the manufacturing techniques employed in their production. The use of micro‐Raman spectroscopy revealed that most samples belong to the alkaline glass family. Chemical analysis also allowed the identification of the main colorants used in the manufacture of the glass beads in this study. Dark blue and turquoise glass were colored using cobalt ions and copper ions, respectively. Amber or light brown hues were produced using the iron–sulfur amber chromophore. Iron ions were also used to produce green, yellow, cream‐colored gray, and black hues. White glass was produced using calcium antimonate phases. These compounds, identified by micro‐Raman spectroscopy and μ‐XRD, were also used as opacifying agents. This study highlights the importance of using micro‐Raman spectroscopy in the study of ancient glass artifacts. In fact, micro‐Raman spectroscopy not only allows the determination of the glass family of heavily degraded samples but was also found to be the only technique capable of identifying evidences of the rearrangement of the silicate network following selective leaching. The combined use of micro‐Raman spectroscopy and μ‐XRD permitted the identification of the opacifying agents and heat treatment used in the manufacture of the opaque glass beads in this study. |
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The combined use of Raman and micro-X-ray diffraction analysis in the study of archaeological glass beadsCalcium antimonateGlass beadsHeat treatmentMicro‐raman spectroscopyμ‐XRDThis study proposes a new nondestructive methodology that combines micro‐Raman spectroscopy and micro‐X‐ray diffraction (μ‐XRD), complemented by variable pressure scanning electron microscopy coupled with energy dispersive X‐ray spectrometry, to determine the composition of glass artifacts and the manufacturing techniques employed in their production. The use of micro‐Raman spectroscopy revealed that most samples belong to the alkaline glass family. Chemical analysis also allowed the identification of the main colorants used in the manufacture of the glass beads in this study. Dark blue and turquoise glass were colored using cobalt ions and copper ions, respectively. Amber or light brown hues were produced using the iron–sulfur amber chromophore. Iron ions were also used to produce green, yellow, cream‐colored gray, and black hues. White glass was produced using calcium antimonate phases. These compounds, identified by micro‐Raman spectroscopy and μ‐XRD, were also used as opacifying agents. This study highlights the importance of using micro‐Raman spectroscopy in the study of ancient glass artifacts. In fact, micro‐Raman spectroscopy not only allows the determination of the glass family of heavily degraded samples but was also found to be the only technique capable of identifying evidences of the rearrangement of the silicate network following selective leaching. The combined use of micro‐Raman spectroscopy and μ‐XRD permitted the identification of the opacifying agents and heat treatment used in the manufacture of the opaque glass beads in this study.Wiley Open AccessRepositório da Universidade de LisboaCosta, MafaldaArruda, Ana MargaridaDias, LuísBarbosa, RuiMirão, JoséVandenabeele, Peter2019-01-22T11:32:06Z20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/36609engCosta, M., Arruda, A. M., Dias, L., Barbosa, R., Mirão, J., & Vandenabeele, P. (2018). The combined use of Raman and micro-X-ray diffraction analysis in the study of archaeological glass beads. Journal of Raman Spectroscopy(Special Issue) 1-12. doi: 10.1002/jrs.54460377-048610.1002/jrs.5446metadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-08T16:33:12Zoai:repositorio.ul.pt:10451/36609Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:50:47.154738Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
The combined use of Raman and micro-X-ray diffraction analysis in the study of archaeological glass beads |
title |
The combined use of Raman and micro-X-ray diffraction analysis in the study of archaeological glass beads |
spellingShingle |
The combined use of Raman and micro-X-ray diffraction analysis in the study of archaeological glass beads Costa, Mafalda Calcium antimonate Glass beads Heat treatment Micro‐raman spectroscopy μ‐XRD |
title_short |
The combined use of Raman and micro-X-ray diffraction analysis in the study of archaeological glass beads |
title_full |
The combined use of Raman and micro-X-ray diffraction analysis in the study of archaeological glass beads |
title_fullStr |
The combined use of Raman and micro-X-ray diffraction analysis in the study of archaeological glass beads |
title_full_unstemmed |
The combined use of Raman and micro-X-ray diffraction analysis in the study of archaeological glass beads |
title_sort |
The combined use of Raman and micro-X-ray diffraction analysis in the study of archaeological glass beads |
author |
Costa, Mafalda |
author_facet |
Costa, Mafalda Arruda, Ana Margarida Dias, Luís Barbosa, Rui Mirão, José Vandenabeele, Peter |
author_role |
author |
author2 |
Arruda, Ana Margarida Dias, Luís Barbosa, Rui Mirão, José Vandenabeele, Peter |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Costa, Mafalda Arruda, Ana Margarida Dias, Luís Barbosa, Rui Mirão, José Vandenabeele, Peter |
dc.subject.por.fl_str_mv |
Calcium antimonate Glass beads Heat treatment Micro‐raman spectroscopy μ‐XRD |
topic |
Calcium antimonate Glass beads Heat treatment Micro‐raman spectroscopy μ‐XRD |
description |
This study proposes a new nondestructive methodology that combines micro‐Raman spectroscopy and micro‐X‐ray diffraction (μ‐XRD), complemented by variable pressure scanning electron microscopy coupled with energy dispersive X‐ray spectrometry, to determine the composition of glass artifacts and the manufacturing techniques employed in their production. The use of micro‐Raman spectroscopy revealed that most samples belong to the alkaline glass family. Chemical analysis also allowed the identification of the main colorants used in the manufacture of the glass beads in this study. Dark blue and turquoise glass were colored using cobalt ions and copper ions, respectively. Amber or light brown hues were produced using the iron–sulfur amber chromophore. Iron ions were also used to produce green, yellow, cream‐colored gray, and black hues. White glass was produced using calcium antimonate phases. These compounds, identified by micro‐Raman spectroscopy and μ‐XRD, were also used as opacifying agents. This study highlights the importance of using micro‐Raman spectroscopy in the study of ancient glass artifacts. In fact, micro‐Raman spectroscopy not only allows the determination of the glass family of heavily degraded samples but was also found to be the only technique capable of identifying evidences of the rearrangement of the silicate network following selective leaching. The combined use of micro‐Raman spectroscopy and μ‐XRD permitted the identification of the opacifying agents and heat treatment used in the manufacture of the opaque glass beads in this study. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018 2018-01-01T00:00:00Z 2019-01-22T11:32:06Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10451/36609 |
url |
http://hdl.handle.net/10451/36609 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Costa, M., Arruda, A. M., Dias, L., Barbosa, R., Mirão, J., & Vandenabeele, P. (2018). The combined use of Raman and micro-X-ray diffraction analysis in the study of archaeological glass beads. Journal of Raman Spectroscopy(Special Issue) 1-12. doi: 10.1002/jrs.5446 0377-0486 10.1002/jrs.5446 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Wiley Open Access |
publisher.none.fl_str_mv |
Wiley Open Access |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799134442682318848 |