Formation of Complex Intermetallics in the Al-Rich Part of Al-Pt-Ru

D. Kapush; S. Samuha; L. Meshi; T. Ya Velikanova; B. Grushko

doi:10.1007/s11669-015-0385-3

Formation of Complex Intermetallics in the Al-Rich Part of Al-Pt-Ru

D. Kapush, S. Samuha, L. Meshi, T. Ya Velikanova, B. Grushko

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

6 Scopus citations

Abstract

The study confirmed the stability of the previously reported ternary C-phase ($$Pm\bar{3}$$Pm3¯, a = 0.77353(3) nm for Al_73.5Pt₁₀Ru_16.5), whose composition was found to range between Al₇₃Pt₆Ru₂₁ and Al_73.5Pt_14.5Ru₁₂. The thermodynamically stable decagonal phase was revealed for the first time at 700-900 °C in a small compositional region around Al₇₈Pt₆Ru₁₆. It belongs to the D₄ structural type (1.65 nm periodicity in the specific direction). The metastable Al-Pt χ-phase (P31c) is stabilized by the addition of only ~1.5 at.% Ru and extends up to ~12 at.% Ru. The lattice parameters for Al₇₆Pt_18.6Ru_5.4 are a = 1.2256(4) and c = 2.7331(4) nm.

Original language	English
Pages (from-to)	327-332
Number of pages	6
Journal	Journal of Phase Equilibria and Diffusion
Volume	36
Issue number	4
DOIs	https://doi.org/10.1007/s11669-015-0385-3
State	Published - 28 Aug 2015
Externally published	Yes

Bibliographical note

Funding Information:
The authors thank C. Thomas for technical contributions. D.K. thanks Forschungszentrum Jülich for financial support and hospitality.

Publisher Copyright:
© 2015, ASM International.

Keywords

alloy phase diagrams
intermetallics
quasicrystals

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10.1007/s11669-015-0385-3

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title = "Formation of Complex Intermetallics in the Al-Rich Part of Al-Pt-Ru",

abstract = "The study confirmed the stability of the previously reported ternary C-phase ($$Pm\bar{3}$$Pm3¯, a = 0.77353(3) nm for Al73.5Pt10Ru16.5), whose composition was found to range between Al73Pt6Ru21 and Al73.5Pt14.5Ru12. The thermodynamically stable decagonal phase was revealed for the first time at 700-900 °C in a small compositional region around Al78Pt6Ru16. It belongs to the D4 structural type (1.65 nm periodicity in the specific direction). The metastable Al-Pt χ-phase (P31c) is stabilized by the addition of only ~1.5 at.% Ru and extends up to ~12 at.% Ru. The lattice parameters for Al76Pt18.6Ru5.4 are a = 1.2256(4) and c = 2.7331(4) nm.",

keywords = "alloy phase diagrams, intermetallics, quasicrystals",

author = "D. Kapush and S. Samuha and L. Meshi and Velikanova, {T. Ya} and B. Grushko",

note = "Publisher Copyright: {\textcopyright} 2015, ASM International.",

year = "2015",

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day = "28",

doi = "10.1007/s11669-015-0385-3",

language = "אנגלית",

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T1 - Formation of Complex Intermetallics in the Al-Rich Part of Al-Pt-Ru

AU - Kapush, D.

AU - Samuha, S.

AU - Meshi, L.

AU - Velikanova, T. Ya

AU - Grushko, B.

PY - 2015/8/28

Y1 - 2015/8/28

N2 - The study confirmed the stability of the previously reported ternary C-phase ($$Pm\bar{3}$$Pm3¯, a = 0.77353(3) nm for Al73.5Pt10Ru16.5), whose composition was found to range between Al73Pt6Ru21 and Al73.5Pt14.5Ru12. The thermodynamically stable decagonal phase was revealed for the first time at 700-900 °C in a small compositional region around Al78Pt6Ru16. It belongs to the D4 structural type (1.65 nm periodicity in the specific direction). The metastable Al-Pt χ-phase (P31c) is stabilized by the addition of only ~1.5 at.% Ru and extends up to ~12 at.% Ru. The lattice parameters for Al76Pt18.6Ru5.4 are a = 1.2256(4) and c = 2.7331(4) nm.

AB - The study confirmed the stability of the previously reported ternary C-phase ($$Pm\bar{3}$$Pm3¯, a = 0.77353(3) nm for Al73.5Pt10Ru16.5), whose composition was found to range between Al73Pt6Ru21 and Al73.5Pt14.5Ru12. The thermodynamically stable decagonal phase was revealed for the first time at 700-900 °C in a small compositional region around Al78Pt6Ru16. It belongs to the D4 structural type (1.65 nm periodicity in the specific direction). The metastable Al-Pt χ-phase (P31c) is stabilized by the addition of only ~1.5 at.% Ru and extends up to ~12 at.% Ru. The lattice parameters for Al76Pt18.6Ru5.4 are a = 1.2256(4) and c = 2.7331(4) nm.

KW - alloy phase diagrams

KW - intermetallics

KW - quasicrystals

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JO - Journal of Phase Equilibria and Diffusion

JF - Journal of Phase Equilibria and Diffusion

IS - 4

ER -

Formation of Complex Intermetallics in the Al-Rich Part of Al-Pt-Ru

Abstract

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Keywords

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