Fracture mode for self-fragmentation of carbon contaminated icosahedral Al-Cu-Fe quasicrystalline phase

G. S. Song; S. H. Kim; W. T. Kim; D. H. Kim

doi:10.1023/A:1010977829340

Fracture mode for self-fragmentation of carbon contaminated icosahedral Al-Cu-Fe quasicrystalline phase

G. S. Song, S. H. Kim, W. T. Kim, D. H. Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Carbon assisted fracture of quasicrystals initiated without the application of external force was investigated. a number of quasicrystalline samples of the Al (-Si)-Cu-Fe and the Al (-Si)-Ni-Co systems were investigated in order to get evidence of the self-fragmentation of quasicrystals induced by the presence of carbon. The samples were prepared respectively in an arc furnace and induction melting apparatus with graphite crucible. Self fragmentation of quasicrystals were observed when carbon atoms diffused into the quasicrystalline samples, resulting in carbon atoms to the disintegration of the bulk phase ingots. The fracture surfaces exhibited a transgranular cleavage structure without trace of cleavage steps and river patterns.

Original language	English
Pages (from-to)	1281-1284
Number of pages	4
Journal	Journal of Materials Science Letters
Volume	20
Issue number	14
DOIs	https://doi.org/10.1023/A:1010977829340
Publication status	Published - 2001 Jun 15

Bibliographical note

Funding Information:
We would like to gratefully acknowledge the Creative Research Initiatives of the Korean Ministry of Science and Technology for its financial support. Dr. E. Fleury is also thanked for his helpful discussion

All Science Journal Classification (ASJC) codes

Materials Science(all)

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10.1023/A:1010977829340

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abstract = "Carbon assisted fracture of quasicrystals initiated without the application of external force was investigated. a number of quasicrystalline samples of the Al (-Si)-Cu-Fe and the Al (-Si)-Ni-Co systems were investigated in order to get evidence of the self-fragmentation of quasicrystals induced by the presence of carbon. The samples were prepared respectively in an arc furnace and induction melting apparatus with graphite crucible. Self fragmentation of quasicrystals were observed when carbon atoms diffused into the quasicrystalline samples, resulting in carbon atoms to the disintegration of the bulk phase ingots. The fracture surfaces exhibited a transgranular cleavage structure without trace of cleavage steps and river patterns.",

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AU - Song, G. S.

AU - Kim, S. H.

AU - Kim, W. T.

AU - Kim, D. H.

N1 - Funding Information: We would like to gratefully acknowledge the Creative Research Initiatives of the Korean Ministry of Science and Technology for its financial support. Dr. E. Fleury is also thanked for his helpful discussion

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N2 - Carbon assisted fracture of quasicrystals initiated without the application of external force was investigated. a number of quasicrystalline samples of the Al (-Si)-Cu-Fe and the Al (-Si)-Ni-Co systems were investigated in order to get evidence of the self-fragmentation of quasicrystals induced by the presence of carbon. The samples were prepared respectively in an arc furnace and induction melting apparatus with graphite crucible. Self fragmentation of quasicrystals were observed when carbon atoms diffused into the quasicrystalline samples, resulting in carbon atoms to the disintegration of the bulk phase ingots. The fracture surfaces exhibited a transgranular cleavage structure without trace of cleavage steps and river patterns.

AB - Carbon assisted fracture of quasicrystals initiated without the application of external force was investigated. a number of quasicrystalline samples of the Al (-Si)-Cu-Fe and the Al (-Si)-Ni-Co systems were investigated in order to get evidence of the self-fragmentation of quasicrystals induced by the presence of carbon. The samples were prepared respectively in an arc furnace and induction melting apparatus with graphite crucible. Self fragmentation of quasicrystals were observed when carbon atoms diffused into the quasicrystalline samples, resulting in carbon atoms to the disintegration of the bulk phase ingots. The fracture surfaces exhibited a transgranular cleavage structure without trace of cleavage steps and river patterns.

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Fracture mode for self-fragmentation of carbon contaminated icosahedral Al-Cu-Fe quasicrystalline phase

Abstract

Bibliographical note

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