Thermodynamic properties of liquid Cu-Sb-Sn alloys by equilibrium saturation and Knudsen effusion mass spectrometric methods

• Autorzy: Romanowska J.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The interaction of lead-free solders with a copper substrate is an essential issue for the reliability of solder joints. In order to understand this interaction, knowledge of thermodynamic and other physical properties of several Cu-containing ternary systems such as Cu-Sb-Sn system is necessary. The aim of this work was to determine Sb activity in Cu-Sb-Sn alloy. Design/methodology/approach: Investigation of this system was carried out using the equilibrium saturation (ES) method and Knudsen effusion mass spectrometry (KEMS). The ES measurements were performed in 1373 K temperature. As the latter method is comparative one, a Sn-Sb alloy was accepted as a reference alloy, where a formula for Sb activity proposed by Jönsson and verified by Vassiliev was accepted. The Sb activity measurements by KEMS method were performed in a temperature range from 793 to 1323 K. Findings: In the frame of presented experiments, Sb activity was determined by ES and KEMS methods. Research limitations/implications: The Sb activities obtained by ES and KEMS agree well - Sb(KEMS)/Sb(ES) = 1.04 š 0.14. Practical implications: Knowledge of multi-component phase equilibrium can provide the alloy designer with specific data enabling finding alloys that meet certain criteria. Originality/value: The measured activity of antimony in the Cu-Sb-Sn alloys both by ES and KEMS method are comparable and they will be used for phase equilibria calculations of the Cu-Sb-Sn system.

Słowa kluczowe

EN

Cu-Sb-Sn system; Knudsen cell; equilibrium saturation; liquid alloys

PL

układ Cu-Sb-Sn; ogniwo Knudsena; nasycanie równowagowe; stop ciekły

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2009
• Tom: Vol. 39, nr 2
• Strony: 69--74
• Opis fizyczny: Bibliogr. 19 poz.

Twórcy

autor

Romanowska J.

• Department of Materials Science, Rzeszow University of Technology, ul. W. Pola 2, 35-959 Rzeszów, Poland,

Bibliografia

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