Thermodynamic analysis of dilute ternary systems. III - The Au-Cu-Sn system.
Heats of solution of Au and Cu in dilute Au-Cu-Sn alloys determined using liquid metal solution calorimeter, calculating self interaction coefficients
Pool, M. J.↗
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Materials Data on Cu3SnAu by Materials Project
AuCu3Sn crystallizes in the cubic P2_13 space group. The structure is three-dimensional. Au is bonded in a 12-coordinate geometry to nine equivalent Cu and three equivalent Sn atoms. There are a spread of Au–Cu bond distances ranging from 2.68–3.00 Å. All Au–Sn bond lengths are 2.79 Å. Cu is bonded in a 10-coordinate geometry to three equivalent Au, four equivalent Cu, and three equivalent Sn atoms. There are two shorter (2.64 Å) and two longer (2.65 Å) Cu–Cu bond lengths. There are one shorter (2.71 Å) and two longer (2.87 Å) Cu–Sn bond lengths. Sn is bonded in a 12-coordinate geometry to three equivalent Au and nine equivalent Cu atoms.
36 MATERIALS SCIENCE↗
Materials Data on CuSnAu by Materials Project
AuCuSn crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Au is bonded in a 9-coordinate geometry to four equivalent Cu and five equivalent Sn atoms. All Au–Cu bond lengths are 2.68 Å. There are one shorter (2.79 Å) and four longer (2.98 Å) Au–Sn bond lengths. Cu is bonded in a 12-coordinate geometry to four equivalent Au and four equivalent Sn atoms. All Cu–Sn bond lengths are 2.91 Å. Sn is bonded in a 5-coordinate geometry to five equivalent Au and four equivalent Cu atoms.
36 MATERIALS SCIENCE↗