Study on using materials for a purple glass bottle manufactured at edo-era

Fumiyoshi Kirino, Kazushi Yokoyama, Mai Saigan, Miki Igari, Hiroki Tsuchiura

Research output: Contribution to journalArticle

Abstract

Materials for a purple glass bottle manufactured in the late Edoera were studied. The design on this purple glass bottle is a potted flower. Infrared light images show light refraction at the flower and soil areas. There is a contrast between the petal and the rim in these images. These results indicate that different materials were used in these parts. UVlight fluorescence images show weak fluorescence at the leaves and the stem. The glass of this bottle contains Pb, Si, and K as the main components and minor components of Mn, Fe, Na, and Al, as revealed by SEMEDS analysis. The glass composition is not homogeneous as a result of the manufacturing process. The Si species measured by XRF is SiO2 and Pb is in the form of Pb3O4 according to Xray diffraction measurement. Measurements of the decorated area indicate that CuZn alloy is used in the area of the soil in the flowerpot, and SnO and SnO2 are corrosion products that exist on the surface of Sn thin film. The peak at 390 nm on the reflection spectrum corresponds to the purple color of this glass bottle. The results of XAFS measurement reveal that the oxidation state of Mn is a mixture of ʲ and +3, that of Fe is +3, and that of Pb is +2.

Original languageEnglish
Pages (from-to)44-51
Number of pages8
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume82
Issue number2
DOIs
Publication statusPublished - 2018

Keywords

  • Coloring mechanism
  • Copper-zinc alloy
  • Corrosion
  • Lead glass
  • Manganese
  • Tin thin film
  • XAFS

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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