http://www.cnr.it/ontology/cnr/individuo/prodotto/ID250652

Au-Ge based alloys for novel High-T Lead Free Solder materials - Fundamentals and applications (Contributo in atti di convegno)

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Au-Ge based alloys for novel High-T Lead Free Solder materials - Fundamentals and applications (Contributo in atti di convegno) (literal)

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Leinenbach C., Jin S., Wang J., Elsener H., Valenza F., Giuranno D., Novakovic R., Delsante S., Borzone G., Watson A., Scott A. (2012)
Au-Ge based alloys for novel High-T Lead Free Solder materials - Fundamentals and applications
in IBSC - 2012 - 5th International Brazing and Soldering Conference, Las Vegas - NV - USA, 22-25 aprile 2012
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Leinenbach C., Jin S., Wang J., Elsener H., Valenza F., Giuranno D., Novakovic R., Delsante S., Borzone G., Watson A., Scott A. (literal)

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Proceedings on the IBSC - 2012 - 5th International Brazing and Soldering Conference (literal)

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Empa-Materials Science and Technology, Überlandstrasse 129, Dübendorf, Switzerland; National Research Council (CNR) - Institute for Energetics and Interphases (IENI), Genoa, Italy; Department of Chemistry and Industrial Chemistry, University of Genova, Italy; Institute for Materials Research, University of Leeds, Leeds LS2 9JT, UK (literal)

Titolo

Au-Ge based alloys for novel High-T Lead Free Solder materials - Fundamentals and applications (literal)

Abstract

Low melting Au based alloys offer an interesting combination of high corrosion and creep resistance as well as good electrical and thermal conductivity, and they support the capability for fluxless soldering. Despite their high price, Au alloys are of special interest for high temperature solder applications where these characteristics are essential, e.g. special MEMS devices, sensors exposed to aggressive media, biomedical applications or in space technology. The alloying system Au-Ge is characterized by a deep eutectic point with a melting temperature of 360°C, but information on the use of eutectic Au-Ge as solder material is very limited. In this work, the results of a group project within the European COST Action MP0602 \"High Temperature Lead Free Solders\" on the feasibility of Au-Ge based alloys as high-temperature lead free solder will be summarized. Beside the experimental study and thermodynamic assessment of a number of important alloying systems (Au-Ge-Cu, Au-Ge-Ni, Au-Ge-Sn, Au-Ge-Sb, Au-Ge-Si) wetting and soldering tests using eutectic Au-Ge alloy and Cu, Ni and Si substrates were performed. Sound joints with a high strength could be produced. (literal)

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