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Research and reconstruction of historic gold mosaics

  • A research project of reconstructing historical gold mosaics deals with reconstructing weatherproof gold and silver mosaics according to historical models. The gold mosaics examinded originate mainly from germany from 1880 to 1920 and are composed of three parts. They consist of a matching support glass, the gold or silver layer and a cover glass. By examining the morphology and layer thicknesses with the ESEM, and using chemical analysis with the EDX, the relationship of glass composition and damage patterns was established. The glass analysis provided quantitative composition data and made it possible to determine its chemical stability. It supplied the basis for calculating glass characteristics and was referred to when casting suitable historical mosaic glass. The analysis of the qualitative composition of the gold and silver layers also served as a model for reconstruction. After testing selected reconstructed gold mosaics in the climate chamber, the ESEM was used for capturingA research project of reconstructing historical gold mosaics deals with reconstructing weatherproof gold and silver mosaics according to historical models. The gold mosaics examinded originate mainly from germany from 1880 to 1920 and are composed of three parts. They consist of a matching support glass, the gold or silver layer and a cover glass. By examining the morphology and layer thicknesses with the ESEM, and using chemical analysis with the EDX, the relationship of glass composition and damage patterns was established. The glass analysis provided quantitative composition data and made it possible to determine its chemical stability. It supplied the basis for calculating glass characteristics and was referred to when casting suitable historical mosaic glass. The analysis of the qualitative composition of the gold and silver layers also served as a model for reconstruction. After testing selected reconstructed gold mosaics in the climate chamber, the ESEM was used for capturing leaching and other process data and the glass composition was optimized accordingly. Over 100 predominantly historical gold mosaics were analyzed and the results entered into a database which can now be consulted for comparative investigations to determine both origin and date.zeige mehrzeige weniger

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  • 201701778-2017-Barce_Gold-Mosaics.pdf
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Metadaten
Autor*innen:Martina Raedel
Koautor*innen:Michael Bücker
Dokumenttyp:Posterpräsentation
Veröffentlichungsform:Präsentation
Sprache:Englisch
Jahr der Erstveröffentlichung:2017
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten
Freie Schlagwörter:Composition; Database; Gold mosaics; Leaching process
Veranstaltung:What comes to mind when you hear mosaics, conserving mosaics from ancient to modern
Veranstaltungsort:Barcelona, Spain
Beginndatum der Veranstaltung:15.10.2017
Enddatum der Veranstaltung:20.10.2017
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:01.12.2017
Referierte Publikation:Nein
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