Studies on material science of ancient bronze objects : focusing on heat treatment and corrosion

  • Yokota, Masaru (Principal Investigator)
  • Sugaya, Fuminori (Co-Investigator(Kenkyū-buntansha))
  • 三船, 温尚 (Co-Investigator(Kenkyū-buntansha))
  • 野瀬, 正照 (Co-Investigator(Kenkyū-buntansha))
  • Miyahara, Shinichi (Co-Investigator(Kenkyū-buntansha))
  • 清水, 康二 (Co-Investigator(Kenkyū-buntansha))

Project Details

Abstract

In an early stage of the study, a DNA analysis found the presence of a strain, which is regarded as Xanthomonadaceae of Bacteroidales. Further DNA analysis by cloning found microorganisms which can be presumed to be Acetobacter and Gluconacetobacter. These analyses have shown high possibility of the presence of multiple microorganisms in corroded layers of ancient bronze mirrors. We are planning to cultivate the microorganisms, which live in unusual environment, but we have not found the appropriate medium for cultivating them. We presume that these microorganisms are causing corrosion in bronze objects. In further research, we hope to prove microbiological corrosion of ancient bronze objects.
StatusFinished
Effective start/end date2003/01/012006/12/31

Funding

  • Japan Society for the Promotion of Science: ¥16,400,000.00

Keywords

  • 文化財科学
  • 文化財劣化
  • 古代青銅器
  • 熱処理
  • 機械的性質
  • 微生物
  • DNA分析
  • 腐食
  • 金属文化財
  • 材料科学
  • 高錫青銅
  • 微生物腐食
  • 鋳造技法
  • 石製鋳型
  • 文化財保存
  • DNA
  • scientific studies on cultural properties
  • deterioration of cultural properties
  • ancient bronze objects
  • heat treatment
  • mechanical properties
  • microorganisms
  • DNA analysis
  • corrosion