| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Stability, Phase Transformations, and Reactive Phase Formation in Electronic Materials XXIII
|
| Presentation Title |
Improving Mechanical Properties of Eutectic Sn-Zn Low-Melting Alloy by Indium Addition |
| Author(s) |
Yu-An Shen |
| On-Site Speaker (Planned) |
Yu-An Shen |
| Abstract Scope |
The development of lead-free alternatives to eutectic Sn-Pb alloys has become a significant focus in the electronics industry, as these alloys pose environmental and health concerns. Eutectic Sn-Zn (SZ) is a promising alternative due to its good strength, but its poor oxidation resistance has resulted in high soldering temperatures. In this study, SZ alloys were modified with In at varying concentrations of 0.5-3.0 wt.%. The addition of In lowered the melting point of SZ from 198.5°C to 190°C. Moreover, the mechanical properties of the were evaluated through hardness and tensile tests. The SZ-In (SZI) alloys improved ductility due to the primary precipitation of Zn. SZI3.0 exhibits the highest strength among the SZI alloys due to stronger reinforcement with more In solid solutions. These findings have important implications for the development of low-melting alloys in electronic packaging. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Electronic Materials, Phase Transformations, Mechanical Properties |