Hostname: page-component-6bf8c574d5-mggfc Total loading time: 0 Render date: 2025-02-14T17:45:42.135Z Has data issue: false hasContentIssue false
  • English
  • Français

Cu-Pb-Sn Ternary System: Low Cu Additions to Pb-Sn- Binary System

Published online by Cambridge University Press:  15 February 2011

V. C. Marcotte  and
K. Schroder
V. C. Marcotte
Affiliation:
IBM General Technology Division, D45K B330–89A East Fishkill Facility, Hopewell Jct., NY 12533
K. Schroder
Affiliation:
Syracuse University, Materials Science/409 Link Syracuse, NY 13210
Get access

Abstract

A portion of the Cu-Pb-Sn ternary diagram was determined experimentally. The investigation was concentrated on the high Pb corner and, to a lesser extent of alloys from Sn to the binary Pb-Sn eutectic. The experimental techniques used were thermal analysis, metallography, and electron microprobe analysis. A new technique for determining liquidus temperatures was used. For the high Pb region the proposed ternary eutectic at 0.06 Cu 0.02% SnPb (all compositions are in weight %) was not observed. For most alloys the primary crystallization phase was Cu3Sn. It was shown that Cu6Sn5 exists in the solid state; for high Sn alloys, it was observed that the addition of Pb reduced the decomposition temperature of Cu6Sn5. A ternary eutectic reaction near the binary Pb-Sn eutectic was confirmed, and the temperature of the ternary eutectic was 1°K below that of the binary eutectic. Liquidus temperatures as well as other reactions detected by thermal analysis will be presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 19: Symposium E – Alloy Phase Diagrams , 1982 , 403
Copyright
Copyright © Materials Research Society 1983

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Hansen, M. and Anderko, K., Constitution of Binary Alloys (McGraw-Hill, New York, 1958) pp. 609, 633 and 1106.Google Scholar
2. Hofmann, W., Lead and Lead Alloys, (Springer-Verlag, New York, 1970) pp. 151–153.Google Scholar
3. Chang, Y. A., Neumann, J. P., Mekula, A., and Goldberg, D.. INCRA Monograph VI. The Metallurgy of Copper. Phase Diagrams and Thermodynamic Properties of Ternary Copper-Metal Systems, (1979) pp. 631–642.Google Scholar
4. Davey, T. R. A., Bull. Inst. Min. Met. 72, 553 (1963).Google Scholar
5. Giolitti, F.et al. From Reference 3.Google Scholar
6. Janecke, E., From Reference 2.Google Scholar
7. Staub, H. and Perron, W., Anal. Chem. 46 128 (1974).Google Scholar