Thermodynamic assessment for the Bi-Mn binary phase diagram in high magnetic fields

Yoshifuru Mitsui; Katsunari Oikawa; Keiichi Koyama; Kazuo Watanabe

doi:10.1016/j.jallcom.2013.05.198

Thermodynamic assessment for the Bi-Mn binary phase diagram in high magnetic fields

Yoshifuru Mitsui, Katsunari Oikawa, Keiichi Koyama, Kazuo Watanabe

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

20 Citations (Scopus)

Abstract

The thermodynamic calculations of the Bi-Mn binary phase diagram in high magnetic fields are carried out by the Computer Coupling of Phase Diagrams (CALPHAD) method. The magnetic total energy Emag was estimated by calculating magnetization on the basis of the mean field theory. The calculated results show the significant change of the Bi-Mn phase diagram under magnetic fields, which were in good agreement with the experimental results of in-field thermal analysis performed by Mitsui et al. The calculation shows that the peritectic temperature T_p1 (BiMn + liquid → BiMn_1.08 + liquid) reached another peritectic temperature T_p2 (BiMn_1.08 + liquid → Mn + liquid) at 49 T, suggesting that BiMn will form directly from Mn + liquid without forming BiMn_1.08 by the heat treatment in B ≥ 49 T.

Original language	English
Pages (from-to)	315-319
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	577
DOIs	https://doi.org/10.1016/j.jallcom.2013.05.198
Publication status	Published - 2013

Keywords

BiMn
CALPHAD
High magnetic field
Phase diagram

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2013.05.198

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title = "Thermodynamic assessment for the Bi-Mn binary phase diagram in high magnetic fields",

abstract = "The thermodynamic calculations of the Bi-Mn binary phase diagram in high magnetic fields are carried out by the Computer Coupling of Phase Diagrams (CALPHAD) method. The magnetic total energy Emag was estimated by calculating magnetization on the basis of the mean field theory. The calculated results show the significant change of the Bi-Mn phase diagram under magnetic fields, which were in good agreement with the experimental results of in-field thermal analysis performed by Mitsui et al. The calculation shows that the peritectic temperature Tp1 (BiMn + liquid → BiMn1.08 + liquid) reached another peritectic temperature Tp2 (BiMn1.08 + liquid → Mn + liquid) at 49 T, suggesting that BiMn will form directly from Mn + liquid without forming BiMn1.08 by the heat treatment in B ≥ 49 T.",

keywords = "BiMn, CALPHAD, High magnetic field, Phase diagram",

author = "Yoshifuru Mitsui and Katsunari Oikawa and Keiichi Koyama and Kazuo Watanabe",

note = "Funding Information: This work was supported by Grant-in-Aid for JSPS Fellows ( 22-7258 ) and partly supported by the KAKENHI 22360285 .",

year = "2013",

doi = "10.1016/j.jallcom.2013.05.198",

language = "English",

volume = "577",

pages = "315--319",

journal = "Journal of Alloys and Compounds",

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TY - JOUR

T1 - Thermodynamic assessment for the Bi-Mn binary phase diagram in high magnetic fields

AU - Mitsui, Yoshifuru

AU - Oikawa, Katsunari

AU - Koyama, Keiichi

AU - Watanabe, Kazuo

N1 - Funding Information: This work was supported by Grant-in-Aid for JSPS Fellows ( 22-7258 ) and partly supported by the KAKENHI 22360285 .

PY - 2013

Y1 - 2013

N2 - The thermodynamic calculations of the Bi-Mn binary phase diagram in high magnetic fields are carried out by the Computer Coupling of Phase Diagrams (CALPHAD) method. The magnetic total energy Emag was estimated by calculating magnetization on the basis of the mean field theory. The calculated results show the significant change of the Bi-Mn phase diagram under magnetic fields, which were in good agreement with the experimental results of in-field thermal analysis performed by Mitsui et al. The calculation shows that the peritectic temperature Tp1 (BiMn + liquid → BiMn1.08 + liquid) reached another peritectic temperature Tp2 (BiMn1.08 + liquid → Mn + liquid) at 49 T, suggesting that BiMn will form directly from Mn + liquid without forming BiMn1.08 by the heat treatment in B ≥ 49 T.

AB - The thermodynamic calculations of the Bi-Mn binary phase diagram in high magnetic fields are carried out by the Computer Coupling of Phase Diagrams (CALPHAD) method. The magnetic total energy Emag was estimated by calculating magnetization on the basis of the mean field theory. The calculated results show the significant change of the Bi-Mn phase diagram under magnetic fields, which were in good agreement with the experimental results of in-field thermal analysis performed by Mitsui et al. The calculation shows that the peritectic temperature Tp1 (BiMn + liquid → BiMn1.08 + liquid) reached another peritectic temperature Tp2 (BiMn1.08 + liquid → Mn + liquid) at 49 T, suggesting that BiMn will form directly from Mn + liquid without forming BiMn1.08 by the heat treatment in B ≥ 49 T.

KW - BiMn

KW - CALPHAD

KW - High magnetic field

KW - Phase diagram

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U2 - 10.1016/j.jallcom.2013.05.198

DO - 10.1016/j.jallcom.2013.05.198

M3 - Article

AN - SCOPUS:84879820478

SN - 0925-8388

VL - 577

SP - 315

EP - 319

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Thermodynamic assessment for the Bi-Mn binary phase diagram in high magnetic fields

Abstract

Keywords

ASJC Scopus subject areas

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