About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
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Alloys and Compounds for Thermoelectric and Solar Cell Applications X
|
Presentation Title |
The Effects of Hot-compression at Working Temperatures on the Physical and Mechanical Behavior of the Thermoelectric GeTe Alloy |
Author(s) |
Gilad Guttmann, Shmuel Samuha, Reuven Gertner, Shlomo Harush, Yaniv Gelbstein |
On-Site Speaker (Planned) |
Gilad Guttmann |
Abstract Scope |
Thermoelectric generators (TEGs) are devices capable of transmitting heat energy into electricity and vice-versa. One major setback for TEGs to be achieve higher technological readiness level is the lack of understanding of the thermo-mechanical properties of the constructing thermos-electric (TE) materials, which will help prevent in-service failures and support develop advanced manufacturing procedures. GeTe is a base alloy for forming a series of efficient TE materials in the 200 ÷ 500ēC temperature range, which have been intensively researched and successfully applied in several TEGs.
This study is innovative in this respect, for focusing on the mechanical behavior of the GeTe alloy under compression tests conducted at ambient to high temperatures. This study also incorporated extensive electron microscopy and crystallographic characterization methods – and reveals a unique microstructure modification, resulting in a brittle-ductile transition at temperature within the expected service temperature range. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, Electronic Materials, Other |