Synthesis of bulk quasicrystals by spark plasma sintering

E. Fleury, J. H. Lee, S. H. Kim, G. S. Song, J. S. Kim, W. T. Kim, Do Hyang Kim

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

Spark plasma sintering method was applied to Al-Cu-Fe and Al-Si-Cu-Fe gas-atomized powders to prepare almost pore-free cylindrical specimens with icosahedral and 1/1 cubic approximant phases, respectively. This investigation has revealed that a high density could be obtained despite the short period and low temperature imposed during spark plasma sintering. In comparison to hot press technique, these conditions are favorable since they limit the formation of secondary phases and avoid exaggerated grain growth. The Vickers microhardness and fracture toughness of these two alloy systems were found to be larger than those obtained from cast and hot pressed samples, which could be attributed to a strong bonding between powder particles and the small-grained microstructure of the bulk SPS quasicrystalline specimens.

Original languageEnglish
JournalMaterials Research Society Symposium - Proceedings
Volume643
Publication statusPublished - 2001 Dec 1
EventQuasicrystals - Preparations, Properties and Applications - Boston, MA, United States
Duration: 2000 Nov 272000 Nov 30

Fingerprint

Quasicrystals
Spark plasma sintering
sparks
Powders
sintering
synthesis
toughness
fracture strength
Grain growth
Microhardness
microhardness
casts
Fracture toughness
Gases
porosity
microstructure
Microstructure
gases
Temperature
temperature

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Fleury, E., Lee, J. H., Kim, S. H., Song, G. S., Kim, J. S., Kim, W. T., & Kim, D. H. (2001). Synthesis of bulk quasicrystals by spark plasma sintering. Materials Research Society Symposium - Proceedings, 643.
Fleury, E. ; Lee, J. H. ; Kim, S. H. ; Song, G. S. ; Kim, J. S. ; Kim, W. T. ; Kim, Do Hyang. / Synthesis of bulk quasicrystals by spark plasma sintering. In: Materials Research Society Symposium - Proceedings. 2001 ; Vol. 643.
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Synthesis of bulk quasicrystals by spark plasma sintering. / Fleury, E.; Lee, J. H.; Kim, S. H.; Song, G. S.; Kim, J. S.; Kim, W. T.; Kim, Do Hyang.

In: Materials Research Society Symposium - Proceedings, Vol. 643, 01.12.2001.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Synthesis of bulk quasicrystals by spark plasma sintering

AU - Fleury, E.

AU - Lee, J. H.

AU - Kim, S. H.

AU - Song, G. S.

AU - Kim, J. S.

AU - Kim, W. T.

AU - Kim, Do Hyang

PY - 2001/12/1

Y1 - 2001/12/1

N2 - Spark plasma sintering method was applied to Al-Cu-Fe and Al-Si-Cu-Fe gas-atomized powders to prepare almost pore-free cylindrical specimens with icosahedral and 1/1 cubic approximant phases, respectively. This investigation has revealed that a high density could be obtained despite the short period and low temperature imposed during spark plasma sintering. In comparison to hot press technique, these conditions are favorable since they limit the formation of secondary phases and avoid exaggerated grain growth. The Vickers microhardness and fracture toughness of these two alloy systems were found to be larger than those obtained from cast and hot pressed samples, which could be attributed to a strong bonding between powder particles and the small-grained microstructure of the bulk SPS quasicrystalline specimens.

AB - Spark plasma sintering method was applied to Al-Cu-Fe and Al-Si-Cu-Fe gas-atomized powders to prepare almost pore-free cylindrical specimens with icosahedral and 1/1 cubic approximant phases, respectively. This investigation has revealed that a high density could be obtained despite the short period and low temperature imposed during spark plasma sintering. In comparison to hot press technique, these conditions are favorable since they limit the formation of secondary phases and avoid exaggerated grain growth. The Vickers microhardness and fracture toughness of these two alloy systems were found to be larger than those obtained from cast and hot pressed samples, which could be attributed to a strong bonding between powder particles and the small-grained microstructure of the bulk SPS quasicrystalline specimens.

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VL - 643

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

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Fleury E, Lee JH, Kim SH, Song GS, Kim JS, Kim WT et al. Synthesis of bulk quasicrystals by spark plasma sintering. Materials Research Society Symposium - Proceedings. 2001 Dec 1;643.