An investigation of phase behavior in the Co-Se-Sn ternary
system using experiments and thermodynamic modeling

a 2023

An investigation of phase behavior in the Co-Se-Sn ternary system using experiments and thermodynamic modeling

MIKŠÍK, Dávid; Jana PAVLŮ a Ondřej ZOBAČ

Základní údaje

Originální název

An investigation of phase behavior in the Co-Se-Sn ternary system using experiments and thermodynamic modeling

Autoři

MIKŠÍK, Dávid (703 Slovensko, domácí); Jana PAVLŮ (203 Česká republika, domácí) a Ondřej ZOBAČ (203 Česká republika, garant)

Vydání

3rd Journal of Thermal Analysis and Calorimetry Conference and 9th V4 (Joint Czech-Hungarian-Polish-Slovakian) Thermoanalytical Conference, 2023

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10403 Physical chemistry

Stát vydavatele

Maďarsko

Utajení

není předmětem státního či obchodního tajemství

Kód RIV

RIV/00216224:14310/23:00133888

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Co-Se-Sn system; phase equilibria; CALPHAD; thermodynamic modelling; scanning electron microscopy; X-ray diffraction; thermal analysis

Změněno: 24. 3. 2024 23:22, doc. Mgr. Jana Pavlů, Ph.D.

Anotace

V originále

The ternary Co-Se-Sn system has been investigated experimentally to determine the phase equilibria and the microstructure of the alloys formed at different temperatures (400, 700, 1000 °C). Samples of various compositions were prepared by melting, annealing, and quenching techniques and characterized using scanning electron microscopy, X-ray diffraction and thermal analysis. The combined experimental results confirmed the presence of several binary phases in this system, including Co3Sn2, CoSn2, CoSe, Co9Se8, CoSe2, SeSn and one ternary phase Co2(SnSe)3. Furthermore, a new thermodynamic description of this system was introduced using the CALPHAD (CALculation of PHAse Diagrams) approach to predict and describe the phase equilibria, including the development of new models for phases CoSe Co9Se8 and CoSe2. The models and thermodynamic description were verified by comparing the predicted phase diagrams with the experimental data obtained in this study. The experimental and modelling results obtained in this study provide new insights into the behaviour of the Co-Se-Sn system and can be applied in the design and optimization of Co-based alloys for various industrial applications, such as magnetic storage media, hightemperature materials, and thermoelectric devices.

Citovat

MIKŠÍK, Dávid; Jana PAVLŮ a Ondřej ZOBAČ. An investigation of phase behavior in the Co-Se-Sn ternary system using experiments and thermodynamic modeling. In 3rd Journal of Thermal Analysis and Calorimetry Conference and 9th V4 (Joint Czech-Hungarian-Polish-Slovakian) Thermoanalytical Conference. 2023.

@proceedings{2387161,
   author = {Mikšík, Dávid and Pavlů, Jana and Zobač, Ondřej},
   booktitle = {3rd Journal of Thermal Analysis and Calorimetry Conference and 9th V4 (Joint Czech-Hungarian-Polish-Slovakian) Thermoanalytical Conference},
   keywords = {Co-Se-Sn system; phase equilibria; CALPHAD; thermodynamic modelling; scanning electron microscopy; X-ray diffraction; thermal analysis},
   language = {eng},
   title = {An investigation of phase behavior in the Co-Se-Sn ternary system using experiments and thermodynamic modeling},
   year = {2023}
}

TY  - CONF
ID  - 2387161
AU  - Mikšík, Dávid - Pavlů, Jana - Zobač, Ondřej
PY  - 2023
TI  - An investigation of phase behavior in the Co-Se-Sn ternary system using experiments and thermodynamic modeling
KW  - Co-Se-Sn system
KW  - phase equilibria
KW  - CALPHAD
KW  - thermodynamic modelling
KW  - scanning electron microscopy
KW  - X-ray diffraction
KW  - thermal analysis
N2  - The ternary Co-Se-Sn system has been investigated experimentally to determine the phase equilibria and the microstructure of the alloys formed at different temperatures (400, 700, 1000 °C). Samples of various compositions were prepared by melting, annealing, and quenching techniques and characterized using scanning electron microscopy, X-ray diffraction and thermal analysis. The combined experimental results confirmed the presence of several binary phases in this system, including Co3Sn2, CoSn2, CoSe, Co9Se8, CoSe2, SeSn and one ternary phase Co2(SnSe)3. Furthermore, a new thermodynamic description of this system was introduced using the CALPHAD (CALculation of PHAse Diagrams) approach to predict and describe the phase equilibria, including the development of new models for phases CoSe Co9Se8 and CoSe2. The models and thermodynamic description were verified by comparing the predicted phase diagrams with the experimental data obtained in this study. The experimental and modelling results obtained in this study provide new insights into the behaviour of the Co-Se-Sn system and can be applied in the design and optimization of Co-based alloys for various industrial applications, such as magnetic storage media, hightemperature materials, and thermoelectric devices.
ER  -

MIKŠÍK, Dávid; Jana PAVLŮ a Ondřej ZOBAČ. An investigation of phase behavior in the Co-Se-Sn ternary system using experiments and thermodynamic modeling. In \textit{3rd Journal of Thermal Analysis and Calorimetry Conference and 9th V4 (Joint Czech-Hungarian-Polish-Slovakian) Thermoanalytical Conference}. 2023.

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