Fracture toughness of a crystalline silicon carbide fiber (tyranno-SA3®)

Kohei Morishita, Shojiro Ochiai, Hiroshi Okuda, Toshihiro Inshikawa, Mitsuhiko Sato, Tadanobu Inoue

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

The fracture toughness of a crystalline silicon carbide fiber, Tyranno-SA®, was determined by introducing an artificial notch directly into the fiber test specimens using a focused-ion (Ga +) beam. The relation between fracture strength and notch size was determined experimentally, while the relation among the notch size, fiber diameter, applied stress at infinity, and stress intensity factor was analyzed by the finite element method. By applying the analyzed result to the experimental results, the fracture toughness of the fiber was determined to be 2.7 ±0.4 MPa√m.

Original languageEnglish
Pages (from-to)2571-2576
Number of pages6
JournalJournal of the American Ceramic Society
Volume89
Issue number8
DOIs
Publication statusPublished - Aug 1 2006
Externally publishedYes

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Silicon carbide
Fracture toughness
Crystalline materials
Fibers
Focused ion beams
Stress intensity factors
Finite element method
silicon carbide

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Fracture toughness of a crystalline silicon carbide fiber (tyranno-SA3®). / Morishita, Kohei; Ochiai, Shojiro; Okuda, Hiroshi; Inshikawa, Toshihiro; Sato, Mitsuhiko; Inoue, Tadanobu.

In: Journal of the American Ceramic Society, Vol. 89, No. 8, 01.08.2006, p. 2571-2576.

Research output: Contribution to journalArticle

Morishita, Kohei ; Ochiai, Shojiro ; Okuda, Hiroshi ; Inshikawa, Toshihiro ; Sato, Mitsuhiko ; Inoue, Tadanobu. / Fracture toughness of a crystalline silicon carbide fiber (tyranno-SA3®). In: Journal of the American Ceramic Society. 2006 ; Vol. 89, No. 8. pp. 2571-2576.
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