Static and dynamic mechanical properties of infiltrated B4C-Si composites

S. Hayun, D. Rittel, N. Frage, M. P. Dariel

Research output: Contribution to journalArticlepeer-review

68 Scopus citations

Abstract

The present paper is concerned with the static and the dynamic mechanical properties at strain-rates up to 103 s-1, of ceramic composites based on porous B4C infiltrated with molten Si. The static mechanical properties of the infiltrated composites depend on the amount of the residual silicon. The Young's modulus and the hardness increase, while the flexural strength and K1C decrease with decreasing fraction of residual silicon. The dynamic strength and the initiation fracture toughness K1D have significantly higher values than the corresponding static properties, and are insensitive to both the residual silicon fraction and the strain-rate up to over(ε{lunate}, ̇) = 103 s- 1.

Original languageEnglish
Pages (from-to)405-409
Number of pages5
JournalMaterials Science and Engineering: A
Volume487
Issue number1-2
DOIs
StatePublished - 25 Jul 2008

Keywords

  • Boron carbide
  • Dynamic properties
  • Fractography
  • Mechanical properties
  • Microstructure
  • Si-infiltrated

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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