The Effects of Depositing Sn-Ag-Cu-S Systems at Different Temperatures on Silver Substrates

Abstract:

Niello bars contain Lead which prohibits by laws and danger to environment. This research was to study the effects of temperatures which a black amalgam of lead-free niello bar alloys was filled in carved grooves of 95wt%Ag-5wt%Cu and 99.99wt%Ag substrates at 400C, 500C, 600C and 700C. Three compositions of lead-free niello bar alloys were selected in this research. The characterizations of microstructure, interface layers, and porosities of lead-free niello bar alloys after applying were reported. The results showed that all three compositions contain six compounds of CuAgS, Ag, Cu₂S, Sn₂S₃, SnS and Cu₄SnS₄. After applying lead-free niello bar alloys on the substrates, it showed that composition #2 on the 95wt%Ag-5wt%Cu substrates was matched to the best condition of temperature at 600C giving lowest porosities.

• Periodical: Advanced Materials Research (Volume 787)
• Pages: 167-171
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.787.167
• Online since: September 2013
• Authors: Pathra Srisukho, Kageeporn Wongpreedee
• Keywords: Interface, Lead-Free Niello Bar Alloys, Nielli Inlay, Nielloware, Porosity

References

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