Thermodynamic properties of the liquid Ag–Cu–Sn lead-free solder alloys

Autor:	Marek Kopyto, Bogusław Onderka, Leszek A. Zabdyr
Rok vydání:	2010
Předmět:	Measurement method Materials science Electromotive force Alloy Analytical chemistry chemistry.chemical_element Electrolyte engineering.material Condensed Matter Physics chemistry Soldering Galvanic cell engineering General Materials Science Tin Electronic materials
Zdroj:	Materials Chemistry and Physics. 122:480-484
ISSN:	0254-0584
DOI:	10.1016/j.matchemphys.2010.03.030
Popis:	The electromotive force measurement method was employed to determine the thermodynamic properties of liquid Ag–Cu–Sn alloys using solid electrolyte galvanic cells as shown below: Kanthal + R e , Ag – Cu – Sn , Sn O 2 | Y ttria stabilized Z irconia | air , P t , p O 2 = 0.21 atm Measurements were carried out for three cross-sections with constant Ag/Cu ratio equal to: 1/3, 1 and 3 and for tin compositions ranging from 10 up to 80 at.%, every 10%, resulting in a total of 24 different alloy compositions. The temperature of the measurements varied within the range from 973 to 1325 K. A linear dependence of the e.m.f. on temperature was observed for all alloy compositions and the appropriate line equations were derived. Tin activities were calculated as function of composition and temperature. Results were presented in tables and figures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4c8d829452d618ad3e6150689025480f https://doi.org/10.1016/j.matchemphys.2010.03.030 Zobrazit plný text záznamu Full Text from ScienceDirect