Structural and thermal properties of Sn–Ag alloys
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2021
Authors
Manasijević, DraganBalanović, Ljubiša
Marković, Ljubiša
Gorgievski, Milan
Stamenković, Uroš
Đorđević, Aleksandar
Minić, Duško
Ćosović, Vladan
Article (Published version)
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Microstructure and thermal properties of slowly cooled Sn–10% Ag and Sn–20% Ag alloys were experimentally investigated in this study. It was found that microstructure of the studied alloys is composed of large, plate-like grains of Ag3Sn intermetallic phase in the Sn-rich eutectic matrix. Phase transition temperatures and corresponding heat effects were experimentally determined and compared with the results of thermodynamic and phase equilibria calculations using the CALPHAD (CALculation of PHAse Diagrams) method and optimized thermodynamic parameters from literature. The xenon flash method was employed for the measurements of thermal diffusivity and determination of thermal conductivity in the temperature range from 25 to 150 °C. The results show that the thermal diffusivity and thermal conductivity gradually decrease with increasing temperature. The determined values of thermal conductivities of the investigated alloys are very close to each other and only slightly higher than that ...of pure tin. The contributions of electrons and phonons to the thermal conductivity of the studied alloys at room temperature were determined using the Wiedemann-Franz law and the obtained values of the thermal and electrical conductivities. The percentage contributions of the phonon component to the thermal conductivity for Sn–10% Ag and Sn–20% Ag alloys at 25 °C were found to be 20.5% and 28.9%, respectively.
Keywords:
Sn-Ag alloys / Solder / Microstructure / Thermal conductivitySource:
Solid State Sciences, 2021, 119, 106685-Publisher:
- Elsevier
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200131 (University of Belgrade, Technical Faculty, Bor) (RS-200131)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-200026)
DOI: 10.1016/j.solidstatesciences.2021.106685
ISSN: 1293-2558; 1873-3085
WoS: 000687697400007
Scopus: 2-s2.0-85109556450
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IHTMTY - JOUR AU - Manasijević, Dragan AU - Balanović, Ljubiša AU - Marković, Ljubiša AU - Gorgievski, Milan AU - Stamenković, Uroš AU - Đorđević, Aleksandar AU - Minić, Duško AU - Ćosović, Vladan PY - 2021 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/4817 AB - Microstructure and thermal properties of slowly cooled Sn–10% Ag and Sn–20% Ag alloys were experimentally investigated in this study. It was found that microstructure of the studied alloys is composed of large, plate-like grains of Ag3Sn intermetallic phase in the Sn-rich eutectic matrix. Phase transition temperatures and corresponding heat effects were experimentally determined and compared with the results of thermodynamic and phase equilibria calculations using the CALPHAD (CALculation of PHAse Diagrams) method and optimized thermodynamic parameters from literature. The xenon flash method was employed for the measurements of thermal diffusivity and determination of thermal conductivity in the temperature range from 25 to 150 °C. The results show that the thermal diffusivity and thermal conductivity gradually decrease with increasing temperature. The determined values of thermal conductivities of the investigated alloys are very close to each other and only slightly higher than that of pure tin. The contributions of electrons and phonons to the thermal conductivity of the studied alloys at room temperature were determined using the Wiedemann-Franz law and the obtained values of the thermal and electrical conductivities. The percentage contributions of the phonon component to the thermal conductivity for Sn–10% Ag and Sn–20% Ag alloys at 25 °C were found to be 20.5% and 28.9%, respectively. PB - Elsevier T2 - Solid State Sciences T1 - Structural and thermal properties of Sn–Ag alloys VL - 119 SP - 106685 DO - 10.1016/j.solidstatesciences.2021.106685 ER -
@article{ author = "Manasijević, Dragan and Balanović, Ljubiša and Marković, Ljubiša and Gorgievski, Milan and Stamenković, Uroš and Đorđević, Aleksandar and Minić, Duško and Ćosović, Vladan", year = "2021", abstract = "Microstructure and thermal properties of slowly cooled Sn–10% Ag and Sn–20% Ag alloys were experimentally investigated in this study. It was found that microstructure of the studied alloys is composed of large, plate-like grains of Ag3Sn intermetallic phase in the Sn-rich eutectic matrix. Phase transition temperatures and corresponding heat effects were experimentally determined and compared with the results of thermodynamic and phase equilibria calculations using the CALPHAD (CALculation of PHAse Diagrams) method and optimized thermodynamic parameters from literature. The xenon flash method was employed for the measurements of thermal diffusivity and determination of thermal conductivity in the temperature range from 25 to 150 °C. The results show that the thermal diffusivity and thermal conductivity gradually decrease with increasing temperature. The determined values of thermal conductivities of the investigated alloys are very close to each other and only slightly higher than that of pure tin. The contributions of electrons and phonons to the thermal conductivity of the studied alloys at room temperature were determined using the Wiedemann-Franz law and the obtained values of the thermal and electrical conductivities. The percentage contributions of the phonon component to the thermal conductivity for Sn–10% Ag and Sn–20% Ag alloys at 25 °C were found to be 20.5% and 28.9%, respectively.", publisher = "Elsevier", journal = "Solid State Sciences", title = "Structural and thermal properties of Sn–Ag alloys", volume = "119", pages = "106685", doi = "10.1016/j.solidstatesciences.2021.106685" }
Manasijević, D., Balanović, L., Marković, L., Gorgievski, M., Stamenković, U., Đorđević, A., Minić, D.,& Ćosović, V.. (2021). Structural and thermal properties of Sn–Ag alloys. in Solid State Sciences Elsevier., 119, 106685. https://doi.org/10.1016/j.solidstatesciences.2021.106685
Manasijević D, Balanović L, Marković L, Gorgievski M, Stamenković U, Đorđević A, Minić D, Ćosović V. Structural and thermal properties of Sn–Ag alloys. in Solid State Sciences. 2021;119:106685. doi:10.1016/j.solidstatesciences.2021.106685 .
Manasijević, Dragan, Balanović, Ljubiša, Marković, Ljubiša, Gorgievski, Milan, Stamenković, Uroš, Đorđević, Aleksandar, Minić, Duško, Ćosović, Vladan, "Structural and thermal properties of Sn–Ag alloys" in Solid State Sciences, 119 (2021):106685, https://doi.org/10.1016/j.solidstatesciences.2021.106685 . .