Mode I fracture toughness of SiC particle-dispersed ZrB2 matrix composite measured using DCDC specimen

J. K. Kurihara, Toru Tomimatsu, Y. F. Liu, S. Q. Guo, Y. Kagawa

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Mode I fracture toughness of SiC particle-dispersed ZrB2 matrix composite has been measured using DCDC specimen. Compression test results of the DCDC specimen show that the fracture toughness of the composite is independent of crack length with an average toughness ∼ 3.5 MPa sqrt(m). Optical microscope and SEM observations reveal a flat crack path and fracture surface with no significant toughening mechanisms in the composite either through grain boundary deflection or SiC particle introduction. Comparison with previous ZrB2 matrix composites, in addition to other short crack test methods, there is an agreement with the results between what this study has come upon with respect to previous work.

Original languageEnglish
Pages (from-to)381-384
Number of pages4
JournalCeramics International
Volume36
Issue number1
DOIs
Publication statusPublished - 2010 Jan 1

Keywords

  • Composite
  • Fracture
  • Mechanical Properties
  • SiC particle
  • ZrB

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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