| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Alloys and Compounds for Thermoelectric and Solar Cell Applications XI
|
| Presentation Title |
Unexpected Reactions Observed in Ni/SnSe2 Couples |
| Author(s) |
Sinn-wen Chen, Chao-hong Wang, Jia–Ruei Chang, He-Cheng Yang |
| On-Site Speaker (Planned) |
Sinn-wen Chen |
| Abstract Scope |
Unexpected reactions are observed on the bare surface of an Ni layer which has no direct contact with the SnSe2 substrate in the Ni/SnSe2 reaction couple reacted at 500℃ and 300℃. The reaction phase is determined to be an NiSe phase. It has been found, although both Se and SnSe2 are not gas phases at 500℃ and 300℃, Se vapor from the non-plated SnSe2 substrate reacts with the bare surface of the Ni layer. With the continuous consumption of Se vapor, parts of the SnSe2 substrate decompose and transform into SnSe. A separate Ni/Se reaction experiment is carried out to verify the assumption that Ni reacts with Se vapor. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Joining, Phase Transformations, |