Wikipedia cites SN10 PB88 AG02 as having low thermal EMF properties. There are several listings for it on Ebay at the moment. Although not the same as Sn18 solder, it's pretty close. I'd think that the thermal properties would be pretty close as well.
Dave M ----- Original Message ----- From: "Andreas Jahn" <andreas_-_j...@t-online.de> To: volt-nuts@febo.com Sent: Sunday, July 3, 2016 10:14:16 AM Subject: Re: [volt-nuts] Thermal EMF - more results Hello, I do not know exactly how the Seebeck coefficients are "mixed" within a alloy. Silver and copper have near equal coefficients. Sn should be similar to Pb on the same side of Cu. On the other side of Cu there are Cd (no longer allowed for ROHS) and Sb (Antimony) and Ge (Germanium). So I would go for Sb or Ge doped Tin solders if you do not want to have 100% Ag + Cu With best regards Andreas Am 03.07.2016 um 12:33 schrieb Andrea Baldoni: > Hello. > I repeated the experiment with a better setup, I also added some alloys > that are already arrived. So far, a really "low" EMF solder hasn't been > identified. > > Measurements have been done between water ice point and boiling point with > Agilent 34401A. > I don't expect the curves be linear, but here it's assumed they are. > > Copper - Sn96.5/Ag3/Cu0.5 -> 3.35uV/K > Copper - Sn95.5/Ag3.8/Cu0.7 -> 3.22uV/K > Copper - Sn60/Pb40 -> 3.34uV/K > Copper - Pb92.5/Sn5/Ag2.5 -> 3.02uV/K > > Copper - Brass -> 3.30uV/K > > I am waiting for Sn96/Ag4, Sn99/Cu1. > > Best regards, > Andrea Baldoni istinfo/volt-nuts and follow the instructions there. _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.