Thermoelectric Devices Based on Porosity-Controlled Stainless Steel 304 and Polymer Composite
발표자
류희진 (한국생산기술연구원)
연구책임자
양찬우 (한국생산기술연구원)
초록
내용
Bi₂Te₃-based thermoelectric devices have been demonstrated to exhibit high thermoelectric performance. However, the high cost and material scarcity of these devices have hindered large-scale production and commercialization. To address these limitations, this study explores the development of thermoelectric devices utilizing SUS304 stainless steel, which offers relatively low thermal conductivity among metals along with superior mechanical strength, durability, cost efficiency, and environmental stability. The fabrication of porous structures was achieved through a process of sintering, wherein the amount and size of the particles of poly(methyl methacrylate) (PMMA) were meticulously controlled. The present study investigated the correlation between PMMA content and porosity, as well as its effect on thermoelectric performance. The integration of porous structures within the device design resulted in a reduction in thermal conductivity, thereby enhancing the performance of the thermoelectric devices. This study demonstrates the feasibility of SUS304-based thermoelectric devices as an alternative to conventional Bi2Te3-based systems.