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Evaluation of Apparent Interface Toughness of Composites Layers by Indentation Test

압자압입시험에 의한 이종재료 접합층의 계면인성 평가

  • 송준희 (전북대학교 부설 공학연구원 공업기술연구센터) ;
  • 김학근 (전북대학교 부설 공학연구원 공업기술연구센터) ;
  • 임재규 (전북대학교 기계공학부, 자동차신기술연구소)
  • Published : 2002.10.01

Abstract

Ceramic/metal composites have many attractive properties and great potential fur applications. Interfacial fracture properties of different layered composites are important in material integrity. Therefore, evaluation of fracture toughness at interface is required in essence. In this study, the mechanical characteristics for interface of ceramic/metal composites were investigated by indentation test of micro-hardness method. Apparent interfacial toughness of TBC system could be determined with a relation between the applied load and the length of the crack formed at the interface by indentation test.

Keywords

Ceramic/Metal Composites;Functionally Graded Material;Mechanical Characteristics;Interface Toughness;Indentation Test

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