Effects of interface chemistry on the fracture properties of titanium matrix composites

S. Mukherjee, C. R. Ananth, N. Chandra

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


The fiber-matrix interface plays a critical role in the performance of titanium matrix composites (TMCs). In this work, the effect of fiber-matrix interfacial reactions on the fracture properties of the interface is studied using experimental characterization and computational modeling techniques. The objective of this study is to establish a link between the evolution of the interfacial chemistry and the resulting mechanical properties. SCS-6/Timetal21s composite is chosen as the candidate material system. The composite specimens are exposed to temperatures as high as 927°C for extended periods. The diffusion of elements across the interface is investigated through metallurgical techniques. Fiber push-out is used to characterize the mechanical properties of the interface. A novel computational method is used to simulate the propagation of interfacial cracks during the tests. The fracture toughness of the interface is evaluated from the experimental data using this method.

Original languageEnglish (US)
Pages (from-to)1213-1219
Number of pages7
JournalComposites Part A: Applied Science and Manufacturing
Issue number9-10
StatePublished - 1998
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials


  • B. Fracture
  • Interface chemistry
  • Titanium matrix composites


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