Crystal structure of eutetic tin-lead solder

[Greg Stauffer]

Can someone please point me in a direction where I can find out the
crystalline structure(s) for the solid phases of eutetic tin-lead solder or
solders in general? Thanks.

[Rainer Elsing]

Sn: tetragonal
Pb: face centered cubic

eutectic: Pb+60%Sn: fcc + tetr.
crystal structures of solders in general: same as solids in general: Table
of periodic properties..
My table is of SARGENT - WELCH and contains crystal structures too.
--
Rainer Elsing
http://www.DrElsing.de

[William Kaukler]

As with many simple eutectics, the structure of the components, Pb, Sn, is
the same when they are in the two-phased eutectic combination. The lattice
parameters are not the same due to their being solid solutions of the two
materials in question. There is no 'direction' to go look for this where it
is 'found'. As for solders in general, so long as they are binary eutectics,
and no intermetallic phases are formed, then the structures of the two
phases will be the same as the constituents. Many solders are not simple
binaries and the phase diagram (ternary, quaternary....) is needed to
identify the phases present. At this point it isn't safe to generalize.

Dr. K

"Greg Stauffer" <wgs...@email.mot.com> wrote in message
news:a654vg$ah6$1...@newshost.mot.com...

[Prokhorenko Sci.Groups]

Greg Stauffer wrote:

_Some_ of it is in "Elsevier Science" Journals

Phase Analysis in the Solder Joint of Sn-Cu Solder/IMCs/Cu
Substrate
Y. G. Lee and J. G. Duh
//MATERIALS CHARACTERIZATION 42:143√160 (1999)

-------
Lead-free Solders in Microelectronics
Mulugeta Abtew Guna Selvaduray
// Mat.Sci & Eng. 27 2000 95-141

[Greg Stauffer]

Thank you all for the information.

"William Kaukler" <kau...@hiwaay.net> wrote in message
news:G_Bh8.64018$pN4.5...@bin8.nnrp.aus1.giganews.com...