A study of the Al-Pt-Ir phase diagram

B. Grushko; S. Samuha; L. Meshi

doi:https://doi.org/10.1016/j.jallcom.2015.06.118

A study of the Al-Pt-Ir phase diagram

B. Grushko, S. Samuha, L. Meshi

Department of Materials Engineering

Ben-Gurion University of the Negev

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

Abstract

Phase equilibria in Al-Pt-Ir were studied up to 50 at.% Al at 1100°C, up to 70at.% Al at 900°C and up to 75at.% Al at 810°C. At elevated temperatures the isostructural AlIr and high-temperature AlPt β-phases probably form a continuous compositional region. The ternary extensions of the phases Al₄Pt, Al₂₁Pt₈, Al₃Pt₂ and low-temperature AlPt were revealed along approximately constant Al concentrations up to 15, 11, 20 and 10at.% Ir, respectively. The Al-Ir C-phase dissolved up to 12at.% Pt, and the χ-phase propagated up to almost Al₃Pt. A new ternary B-phase (I4₁/acd, a=0.86250, c=2.18409nm) was revealed around Al₆₉Pt₇Ir₂₄. Its structural model was derived from the electron diffraction data.

Original language	American English
Article number	34471
Pages (from-to)	873-878
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	646
DOIs	https://doi.org/10.1016/j.jallcom.2015.06.118
State	Published - 7 Jul 2015

Keywords

Crystal structure
Phase diagrams
Transition metal alloys and compounds

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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https://doi.org/10.1016/j.jallcom.2015.06.118

Cite this

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title = "A study of the Al-Pt-Ir phase diagram",

abstract = "Phase equilibria in Al-Pt-Ir were studied up to 50 at.% Al at 1100°C, up to 70at.% Al at 900°C and up to 75at.% Al at 810°C. At elevated temperatures the isostructural AlIr and high-temperature AlPt β-phases probably form a continuous compositional region. The ternary extensions of the phases Al4Pt, Al21Pt8, Al3Pt2 and low-temperature AlPt were revealed along approximately constant Al concentrations up to 15, 11, 20 and 10at.% Ir, respectively. The Al-Ir C-phase dissolved up to 12at.% Pt, and the χ-phase propagated up to almost Al3Pt. A new ternary B-phase (I41/acd, a=0.86250, c=2.18409nm) was revealed around Al69Pt7Ir24. Its structural model was derived from the electron diffraction data.",

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author = "B. Grushko and S. Samuha and L. Meshi",

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T1 - A study of the Al-Pt-Ir phase diagram

AU - Grushko, B.

AU - Samuha, S.

AU - Meshi, L.

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N2 - Phase equilibria in Al-Pt-Ir were studied up to 50 at.% Al at 1100°C, up to 70at.% Al at 900°C and up to 75at.% Al at 810°C. At elevated temperatures the isostructural AlIr and high-temperature AlPt β-phases probably form a continuous compositional region. The ternary extensions of the phases Al4Pt, Al21Pt8, Al3Pt2 and low-temperature AlPt were revealed along approximately constant Al concentrations up to 15, 11, 20 and 10at.% Ir, respectively. The Al-Ir C-phase dissolved up to 12at.% Pt, and the χ-phase propagated up to almost Al3Pt. A new ternary B-phase (I41/acd, a=0.86250, c=2.18409nm) was revealed around Al69Pt7Ir24. Its structural model was derived from the electron diffraction data.

AB - Phase equilibria in Al-Pt-Ir were studied up to 50 at.% Al at 1100°C, up to 70at.% Al at 900°C and up to 75at.% Al at 810°C. At elevated temperatures the isostructural AlIr and high-temperature AlPt β-phases probably form a continuous compositional region. The ternary extensions of the phases Al4Pt, Al21Pt8, Al3Pt2 and low-temperature AlPt were revealed along approximately constant Al concentrations up to 15, 11, 20 and 10at.% Ir, respectively. The Al-Ir C-phase dissolved up to 12at.% Pt, and the χ-phase propagated up to almost Al3Pt. A new ternary B-phase (I41/acd, a=0.86250, c=2.18409nm) was revealed around Al69Pt7Ir24. Its structural model was derived from the electron diffraction data.

KW - Crystal structure

KW - Phase diagrams

KW - Transition metal alloys and compounds

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 34471

ER -

A study of the Al-Pt-Ir phase diagram

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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