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Fracture Morphology of Degraded Historic Silk Fibers Using SEM

SEM을 이용한 출토 견섬유의 손상 형태에 관한 연구

  • Bae, Soon Wha (Dept. of Clothing Science, Seoul Women's University) ;
  • Lee, Mee Sik (Dept. of Clothing Science, Seoul Women's University)
  • 배순화 (서울여자대학교 의류학과) ;
  • 이미식 (서울여자대학교 의류학과)
  • Received : 2013.04.17
  • Accepted : 2013.06.20
  • Published : 2013.07.31

Abstract

After analyzing excavated $17-18^{th}$ century silk fibers through a scanning electron microscopy, we discovered seven different kinds of fracture morphology. Using Morton & Hearle fiber fracture morphology, we classified the findings into four different categories. Type I is tensile failure resulting from brittle fracture, granular fracture, and ductile fracture. Type II is fatigue failure caused by tensile fatigue, flex fatigue, and axial split (fibrillation). Type III is bacterial deterioration discovered only in excavated artifacts. Type IV is a combination of the three above. Humid underground conditions and the infiltration of bacteria caused the fibers to swell and weaken its interfibrillar cohesion. Fractures occur when drying and processing an excavated artifact that is already in a fragile condition. Therefore, one must minimize damage through a prompt cleaning process and make sure that the least possible force is exerted on the fabric during any treatment for repair and exhibition.

Keywords

References

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