The toughening of Al-Cu-Fe(-B) quasicrystals by Sn particles

Eric Fleury, Yu Chan Kim, Do Hyung Kim, Do Hyang Kim, Won Tae Kim

Research output: Contribution to journalConference articlepeer-review

11 Citations (Scopus)


The effect of soft Sn particles on the room temperature mechanical properties of as-cast Al-Cu-Fe(-B) quasicrystalline (QC) matrix composites has been studied by compression and three-point bending tests on notched specimens. Microstructural investigations indicated that the Sn particle size in the as-cast composites increased linearly with the volume fraction. The addition of about 10 vol.% Sn enabled a twofold increase of the strength for the cast Al-Cu-Fe and a threefold increase of the fracture toughness for the cast Al-Cu-Fe-B composites. The enhancement of the strength was attributed to micro-crack impediment and crack bridging mechanisms in the as-cast QC matrix composites with small and large Sn particle sizes, respectively.

Original languageEnglish
Pages (from-to)449-452
Number of pages4
JournalJournal of Non-Crystalline Solids
Publication statusPublished - 2004 Mar 15
Event8th International Conference on Quasicrystals - Bangalore, India
Duration: 2002 Sept 82002 Sept 13

Bibliographical note

Funding Information:
The authors are grateful for the financial support by the Creative Research Initiatives of the Korean Ministry of Science and Technology.

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry


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