Month: June 2024

Decomposition of zwischgold coating on medieval altar figure (Image and research: Andreas Späth, Rainer Fink, Physical Chemistry II; Qing Wu, Haute École Arc, Neuchâtel)
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June 2024

Zwischgold is an ultra-thin bilayer metal leaf that has been developed in medieval times as an alternative to gold leaves. It consists of a Au top-layer on Ag leaf. While…