The Cu–Sn phase diagram, Part I: New experimental results

• Published in: Intermetallics Vol. 34; pp. 142 - 147
• Main Authors: Fürtauer, S., Li, D., Cupid, D., Flandorfer, H.
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.03.2013; Elsevier Applied Science
• Subjects: A. Intermetallics miscellaneous; B. Order/disorder transformations; B. Phase diagrams; B. Phase identification; B. Phase identification; A. Intermetallics miscellaneous; B. Order/disorder transformations; B. Phase diagrams
• ISSN: 0966-9795; 1879-0216
• DOI: 10.1016/j.intermet.2012.10.004

Phase diagram investigation of the Cu–Sn system was carried out on twenty Cu-rich samples by thermal analysis (DTA), metallographic methods (EPMA/SEM-EDX) and crystallographic analysis (powder XRD, high temperature powder XRD). One main issue in this work was to investigate the high temperature phases beta (W-type) and gamma (BiF3-type) and to check the phase relations between them. In the high temperature powder XRD experiments the presence of the two-phase-field between the beta- and the gamma-phase could not be confirmed. Detailed study of primary literature together with our experimental results leads to a new phase diagram version with a higher order transformation between these two high temperature phases. The present work is designated as part I of our joint publication. The new findings described here have been included into a completely new thermodynamic assessment of the Cu–Sn phase diagram which is presented in part II. ► Extended literature review from 1897 up today. ► Extended HT-XRD in the Cu-rich part. ► New phase diagram version of Cu–Sn.