Thermodynamic criterion for the formation of Laves phases in binary transition-metal systems

R. F. Zhang; B. X. Liu

doi:10.1080/09500830500197385

Thermodynamic criterion for the formation of Laves phases in binary transition-metal systems

R. F. Zhang
, B. X. Liu^*

^*Corresponding author for this work

Tsinghua University

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

14 Scopus citations

Abstract

A thermodynamic factor k is proposed to combine the deviation of atomic size ratio from the ideal value of 1.225 and the formation enthalpy, for the formation of Laves phases in binary transition-metal systems. Based on calculations for some 132 Laves phases, the conditions favouring the formation of the Laves phases are that k be greater than a critical value of 310 and formation enthalpy be larger than -130 kJ mol -1 . The calculated results are statistically in agreement with experimental observations reported so far in the literature.

Original language	English
Pages (from-to)	283-287
Number of pages	5
Journal	Philosophical Magazine Letters
Volume	85
Issue number	6
DOIs	https://doi.org/10.1080/09500830500197385
State	Published - Jun 2005
Externally published	Yes

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10.1080/09500830500197385

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title = "Thermodynamic criterion for the formation of Laves phases in binary transition-metal systems",

abstract = "A thermodynamic factor k is proposed to combine the deviation of atomic size ratio from the ideal value of 1.225 and the formation enthalpy, for the formation of Laves phases in binary transition-metal systems. Based on calculations for some 132 Laves phases, the conditions favouring the formation of the Laves phases are that k be greater than a critical value of 310 and formation enthalpy be larger than -130 kJ mol -1 . The calculated results are statistically in agreement with experimental observations reported so far in the literature.",

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AU - Liu, B. X.

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N2 - A thermodynamic factor k is proposed to combine the deviation of atomic size ratio from the ideal value of 1.225 and the formation enthalpy, for the formation of Laves phases in binary transition-metal systems. Based on calculations for some 132 Laves phases, the conditions favouring the formation of the Laves phases are that k be greater than a critical value of 310 and formation enthalpy be larger than -130 kJ mol -1 . The calculated results are statistically in agreement with experimental observations reported so far in the literature.

AB - A thermodynamic factor k is proposed to combine the deviation of atomic size ratio from the ideal value of 1.225 and the formation enthalpy, for the formation of Laves phases in binary transition-metal systems. Based on calculations for some 132 Laves phases, the conditions favouring the formation of the Laves phases are that k be greater than a critical value of 310 and formation enthalpy be larger than -130 kJ mol -1 . The calculated results are statistically in agreement with experimental observations reported so far in the literature.

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DO - 10.1080/09500830500197385

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VL - 85

SP - 283

EP - 287

JO - Philosophical Magazine Letters

JF - Philosophical Magazine Letters

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Thermodynamic criterion for the formation of Laves phases in binary transition-metal systems

Abstract

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