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Copper-based opaque...
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Druenert, F.Univ Jena, Germany
(författare)
Copper-based opaque red glasses - Understanding the colouring mechanism of copper nanoparticles in archaeological glass samples
- Artikel/kapitelEngelska2018
Förlag, utgivningsår, omfång ...
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Elsevier,2018
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:lnu-71450
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https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-71450URI
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https://doi.org/10.1016/j.optmat.2017.12.054DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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Red opaque glasses of two different sites in central Germany, a medieval glassworks in Glashutten, Taunus Mountains, and an early modern glassworks in Wieda, Harz Mountains, were analysed with regard to their optical appearance. By scanning electron microscopy and X-ray diffraction, metallic copper nanoparticles were identified as a conspicuous constituent in these glasses. In addition, similar opaque red glasses were reproduced in the laboratory in order to better understand the manufacturing process. Detailed analysis of the optical scattering was conducted in order to evaluate the role of Cu-0 nanoparticles in the colouring mechanism relative to other possible reasons of colouration. We find clear differences between the possible contributions of Cu2O (cuprite) particles and metallic copper (Cu-0) nanoparticles. Through simulated backscattering spectra we were able to calculate an average copper particle radius in the archaeological glass samples resulting in a value of up to 95 nm, which matches well the results of SEM investigation (minimum 65 nm). Using the methods we applied in this study, it becomes possible to reconstruct various processing conditions as they were applied in medieval manufacture of these particular materials. (C) 2018 Elsevier B.V. All rights reserved.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Blanz, M.Univ Jena, Germany;Univ Highlands & Isl, UK
(författare)
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Pollok, K.Univ Jena, Germany
(författare)
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Pan, Z.Univ Jena, Germany
(författare)
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Wondraczek, L.Univ Jena, Germany
(författare)
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Möncke, DorisLinnéuniversitetet,Institutionen för byggd miljö och energiteknik (BET),Natl Hellen Res Fdn, Greece(Swepub:lnu)domoaa
(författare)
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Univ Jena, GermanyUniv Jena, Germany;Univ Highlands & Isl, UK
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Optical materials (Amsterdam): Elsevier76, s. 375-3810925-34671873-1252
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