Influence of Oxygen on the Stability of Zr4Sn

Young Uk Kwon; John D. Corbett

doi:10.1021/cm00019a035

Influence of Oxygen on the Stability of Zr₄Sn

Young Uk Kwon
, John D. Corbett

Ames Laboratory

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

23 Scopus citations

Abstract

Contradictions regarding the stability of Zr₄Sn have been resolved in terms of the effects of oxygen (and perhaps other) impurities. The phase is stable at 800-1050 °C (at least) and has the composition Zr_4.0 _4.2Sn, but the decomposition 3Zr₄Sn → α-Zr(Sn, O) + Zr₅Sn₃is driven by the solution of oxygen in the metal. Even trace amounts give three-phase products, such as on the surface of substantially all arc-melted and annealed samples of Zr₄Sn, and the decomposition is complete at 1050 °C in the presence of ≳3 at. % oxygen. The separate and combined effects of tin and oxygen solutes on the lattice constants of α-Zr support the conclusions. The effect of oxygen (Fe, etc.) impurities on the solidus composition for α-Zr(Sn)-Zr₄Sn may be responsible for some literature differences.

Original language	English
Pages (from-to)	187-190
Number of pages	4
Journal	Chemistry of Materials
Volume	4
Issue number	1
DOIs	https://doi.org/10.1021/cm00019a035
State	Published - 1 Feb 1992
Externally published	Yes

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title = "Influence of Oxygen on the Stability of Zr4Sn",

abstract = "Contradictions regarding the stability of Zr4Sn have been resolved in terms of the effects of oxygen (and perhaps other) impurities. The phase is stable at 800-1050 °C (at least) and has the composition Zr4.0 4.2Sn, but the decomposition 3Zr4Sn → α-Zr(Sn, O) + Zr5Sn3is driven by the solution of oxygen in the metal. Even trace amounts give three-phase products, such as on the surface of substantially all arc-melted and annealed samples of Zr4Sn, and the decomposition is complete at 1050 °C in the presence of ≳3 at. \% oxygen. The separate and combined effects of tin and oxygen solutes on the lattice constants of α-Zr support the conclusions. The effect of oxygen (Fe, etc.) impurities on the solidus composition for α-Zr(Sn)-Zr4Sn may be responsible for some literature differences.",

author = "Kwon, \{Young Uk\} and Corbett, \{John D.\}",

year = "1992",

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doi = "10.1021/cm00019a035",

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TY - JOUR

T1 - Influence of Oxygen on the Stability of Zr4Sn

AU - Kwon, Young Uk

AU - Corbett, John D.

PY - 1992/2/1

Y1 - 1992/2/1

N2 - Contradictions regarding the stability of Zr4Sn have been resolved in terms of the effects of oxygen (and perhaps other) impurities. The phase is stable at 800-1050 °C (at least) and has the composition Zr4.0 4.2Sn, but the decomposition 3Zr4Sn → α-Zr(Sn, O) + Zr5Sn3is driven by the solution of oxygen in the metal. Even trace amounts give three-phase products, such as on the surface of substantially all arc-melted and annealed samples of Zr4Sn, and the decomposition is complete at 1050 °C in the presence of ≳3 at. % oxygen. The separate and combined effects of tin and oxygen solutes on the lattice constants of α-Zr support the conclusions. The effect of oxygen (Fe, etc.) impurities on the solidus composition for α-Zr(Sn)-Zr4Sn may be responsible for some literature differences.

AB - Contradictions regarding the stability of Zr4Sn have been resolved in terms of the effects of oxygen (and perhaps other) impurities. The phase is stable at 800-1050 °C (at least) and has the composition Zr4.0 4.2Sn, but the decomposition 3Zr4Sn → α-Zr(Sn, O) + Zr5Sn3is driven by the solution of oxygen in the metal. Even trace amounts give three-phase products, such as on the surface of substantially all arc-melted and annealed samples of Zr4Sn, and the decomposition is complete at 1050 °C in the presence of ≳3 at. % oxygen. The separate and combined effects of tin and oxygen solutes on the lattice constants of α-Zr support the conclusions. The effect of oxygen (Fe, etc.) impurities on the solidus composition for α-Zr(Sn)-Zr4Sn may be responsible for some literature differences.

UR - https://www.scopus.com/pages/publications/0345775258

U2 - 10.1021/cm00019a035

DO - 10.1021/cm00019a035

M3 - Article

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SN - 0897-4756

VL - 4

SP - 187

EP - 190

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 1

ER -

Influence of Oxygen on the Stability of Zr₄Sn

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