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Meeting MS&T22: Materials Science & Technology
Symposium Energy Materials for Sustainable Development
Presentation Title Thermoelectric Properties of Additively Manufactured Fe3Al2Si3
Author(s) Babak Alinejad, Amir Mostafaei
On-Site Speaker (Planned) Babak Alinejad
Abstract Scope A unique feature of thermoelectric materials is their ability to convert heat to electricity, thus enabling them to recycle wasted energy. The nontoxicity and abundance of raw materials make the Fe3Al2Si3 intermetallic compound an attractive candidate for room-temperature thermoelectric applications. Fe3Al2Si3 powder is synthesized by mechanical activation of Si nanoparticles together with micron-size Al and Fe. Powder with a size distribution of 50-100 µm is processed in laser powder bed fusion (LPBF) machine. We establish a process map for the production of defect-free, high-density and homogeneous Fe3Al2Si3 parts. Microstructure, composition and thermoelectric properties of the LPBF process parts are evaluated. The power factor is measured to be about 700 µW/mK2 for an n-type and about 600 µW/mK2 for a p-type Fe3Al2Si3 at 373 K.
Proceedings Inclusion? Undecided

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