http://www.cnr.it/ontology/cnr/individuo/prodotto/ID53545
Thermodynamics of lead-free solder Bi-In-Sn alloys (Articolo in rivista)
- Type
- Label
- Thermodynamics of lead-free solder Bi-In-Sn alloys (Articolo in rivista) (literal)
- Anno
- 2006-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.calphad.2006.07.003 (literal)
- Alternative label
B. Brunetti, D. Gozzi, M.Iervolino, V. Piacente, G. Zanicchi, N. Parodi, G. Borzone (2006)
Thermodynamics of lead-free solder Bi-In-Sn alloys
in Calphad
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- B. Brunetti, D. Gozzi, M.Iervolino, V. Piacente, G. Zanicchi, N. Parodi, G. Borzone (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Gozzi: Università La Sapienza
Iervolino :Università di Genova
Piacente : Università La Sapienza
Zanicchi: Università di Genova
Parodi: Università di Genova
Borzone :Università di Genova (literal)
- Titolo
- Thermodynamics of lead-free solder Bi-In-Sn alloys (literal)
- Abstract
- The thermodynamics of Bi-In-Sn lead-free solder alloys has been studied by two different experimental techniques: torsion-effusion and differential scanning calorimetry. The results show that this ternary system at fixed Bi composition, X-Bi = 0.20, and 565 K behaves as a non-ideal system with exothermic Delta(mix) H-T(0) passing through a minimum at X-In = 0.58 and X-sn = 0.22. In the whole range of the quantity X-Sn/(X-Sn + X-In) T and at 1050 K the average value of the bismuth activity is 0.14 +/- 0.02 which implies an average activity coefficient of Bi equal to 0.70 +/- 0.01. The Bi activity in ternary alloys at 1000 K with variable X-Bi and fixed ratio rho = X-Sn/X-In = 0.85 has been measured. The excess integral free energy change for the mixing, Delta(mix) G(T)(0) (xs), has also been evaluated by making use of both the torsion-effusion experimental and literature data T for Bi-Sn and Bi-In binary systems. Under these conditions, the ternary system is not a regular solution and the entropy contribution to the free energy of mixing is dominating the Gibbs energy. (literal)
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- Autore CNR
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