Thermodynamic modeling of the V-Si-B system

Antonio Augusto Araujo Pinto da Silva; Nabil Chaia; Flavio Ferreira; Gilberto Carvalho Coelho; Jean Marc Fiorani; Nicolas David; Michel Vilasi; Carlos Angelo Nunes

doi:10.1016/j.calphad.2017.10.001

Thermodynamic modeling of the V-Si-B system

Antonio Augusto Araujo Pinto da Silva, Nabil Chaia, Flavio Ferreira, Gilberto Carvalho Coelho, Jean Marc Fiorani, Nicolas David, Michel Vilasi, Carlos Angelo Nunes

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

Abstract

In the present work, the V-Si-B ternary system was thermodynamically modeled using the CALPHAD method. The thermodynamic descriptions of the V-Si and B-Si binary systems were taken from literature while the parameters of binary V-B were re-evaluated, based on new experimental information. The ternary thermodynamic description was based on experimental data of isothermal section and liquidus projection. The binary compounds V₃B₂, VB, V₅B₆, V₃B₄, V₂B₃ and VB₂ were modeled as stoichiometric phases; the terminal solid solutions BCC and β-Rhomb were modeled using the sublattice models (V,Si)₁(B,va)₃ and (B)₉₃(B, Si)₁₂; the ternary phases D8₈ and T₂ were modeled as (V)_0.5556(B,Si)_0.3333(B,va)_0.1111 and (V)_0.625(B,Si)_0.375, respectively. A set of thermodynamic parameters is proposed and the results showed a good agreement with available experimental information from the literature.

Original language	English
Pages (from-to)	199-206
Number of pages	8
Journal	Calphad: Computer Coupling of Phase Diagrams and Thermochemistry
Volume	59
DOIs	https://doi.org/10.1016/j.calphad.2017.10.001
Publication status	Published - 1 Dec 2017
Externally published	Yes

Keywords

CALPHAD
Phase diagram
Thermodynamic modeling
V-Si-B

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10.1016/j.calphad.2017.10.001

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@article{89c69f7996c44e979dd2a33ba8a7bb32,

title = "Thermodynamic modeling of the V-Si-B system",

abstract = "In the present work, the V-Si-B ternary system was thermodynamically modeled using the CALPHAD method. The thermodynamic descriptions of the V-Si and B-Si binary systems were taken from literature while the parameters of binary V-B were re-evaluated, based on new experimental information. The ternary thermodynamic description was based on experimental data of isothermal section and liquidus projection. The binary compounds V3B2, VB, V5B6, V3B4, V2B3 and VB2 were modeled as stoichiometric phases; the terminal solid solutions BCC and β-Rhomb were modeled using the sublattice models (V,Si)1(B,va)3 and (B)93(B, Si)12; the ternary phases D88 and T2 were modeled as (V)0.5556(B,Si)0.3333(B,va)0.1111 and (V)0.625(B,Si)0.375, respectively. A set of thermodynamic parameters is proposed and the results showed a good agreement with available experimental information from the literature.",

keywords = "CALPHAD, Phase diagram, Thermodynamic modeling, V-Si-B",

author = "\{Pinto da Silva\}, \{Antonio Augusto Araujo\} and Nabil Chaia and Flavio Ferreira and \{Carvalho Coelho\}, Gilberto and Fiorani, \{Jean Marc\} and Nicolas David and Michel Vilasi and Nunes, \{Carlos Angelo\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = dec,

day = "1",

doi = "10.1016/j.calphad.2017.10.001",

language = "English",

volume = "59",

pages = "199--206",

journal = "Calphad: Computer Coupling of Phase Diagrams and Thermochemistry",

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TY - JOUR

T1 - Thermodynamic modeling of the V-Si-B system

AU - Pinto da Silva, Antonio Augusto Araujo

AU - Chaia, Nabil

AU - Ferreira, Flavio

AU - Carvalho Coelho, Gilberto

AU - Fiorani, Jean Marc

AU - David, Nicolas

AU - Vilasi, Michel

AU - Nunes, Carlos Angelo

PY - 2017/12/1

Y1 - 2017/12/1

N2 - In the present work, the V-Si-B ternary system was thermodynamically modeled using the CALPHAD method. The thermodynamic descriptions of the V-Si and B-Si binary systems were taken from literature while the parameters of binary V-B were re-evaluated, based on new experimental information. The ternary thermodynamic description was based on experimental data of isothermal section and liquidus projection. The binary compounds V3B2, VB, V5B6, V3B4, V2B3 and VB2 were modeled as stoichiometric phases; the terminal solid solutions BCC and β-Rhomb were modeled using the sublattice models (V,Si)1(B,va)3 and (B)93(B, Si)12; the ternary phases D88 and T2 were modeled as (V)0.5556(B,Si)0.3333(B,va)0.1111 and (V)0.625(B,Si)0.375, respectively. A set of thermodynamic parameters is proposed and the results showed a good agreement with available experimental information from the literature.

AB - In the present work, the V-Si-B ternary system was thermodynamically modeled using the CALPHAD method. The thermodynamic descriptions of the V-Si and B-Si binary systems were taken from literature while the parameters of binary V-B were re-evaluated, based on new experimental information. The ternary thermodynamic description was based on experimental data of isothermal section and liquidus projection. The binary compounds V3B2, VB, V5B6, V3B4, V2B3 and VB2 were modeled as stoichiometric phases; the terminal solid solutions BCC and β-Rhomb were modeled using the sublattice models (V,Si)1(B,va)3 and (B)93(B, Si)12; the ternary phases D88 and T2 were modeled as (V)0.5556(B,Si)0.3333(B,va)0.1111 and (V)0.625(B,Si)0.375, respectively. A set of thermodynamic parameters is proposed and the results showed a good agreement with available experimental information from the literature.

KW - CALPHAD

KW - Phase diagram

KW - Thermodynamic modeling

KW - V-Si-B

U2 - 10.1016/j.calphad.2017.10.001

DO - 10.1016/j.calphad.2017.10.001

M3 - Article

AN - SCOPUS:85032740556

SN - 0364-5916

VL - 59

SP - 199

EP - 206

JO - Calphad: Computer Coupling of Phase Diagrams and Thermochemistry

JF - Calphad: Computer Coupling of Phase Diagrams and Thermochemistry

ER -

Thermodynamic modeling of the V-Si-B system

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Keywords

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