N型鎂矽錫熱電材料之製程開發;Process Innovation of N-type Mg2(Si,Sn) Thermoelectric Materials

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题名:	N型鎂矽錫熱電材料之製程開發;Process Innovation of N-type Mg2(Si,Sn) Thermoelectric Materials
作者:	李定洲;Li, Ting-Chou
贡献者:	電機工程學系
关键词:	熱電材料;鎂矽錫;Thermoelectric Materials;Mg2(Si,Sn)
日期:	2021-08-09
上传时间:	2021-12-07 13:06:10 (UTC+8)
出版者:	國立中央大學
摘要:	科技日新月異，石化能源帶動人類發展從工業革命至今，足以見人類社會進步的足跡，卻也造成全球暖化和能源枯竭等問題，人們迫切尋找替代能源做為新的方案。熱電材料能利用熱能，將閒置或多餘的能量轉換成電能，使得系統使用能量的效率進一步提升，此特質讓它具有成為再生能源的潛力。本實驗透過Mg2Si和Mg2Sn粉末，經混粉、冷壓成形、退火及不銹鋼球磨，再用不同比例和不同的製程溫度合成Mg2SiSn熱電試片，以求最佳的熱電優值。最後我們製備Mg2SiSn塊材來製作模組，並量測其熱電特性。 ;With new technological advances, from the Industrial Revolution to the present, petrochemical energy has been enough to see human social progress, but it has also caused problems such as global warming and energy depletion. People are eager to find new solutions as alternative energy. Thermoelectric materials can use thermal energy to convert idle or excess energy into electrical energy, so that the efficiency of the system′s energy use is further improved. This feature gives it the potential to become a renewable energy. In this study, Mg2Si and Mg2Sn powders were mixed, cold-pressed, annealed and stainless steel ball milled. Then, Mg2SiSn thermoelectric sample were syn-thesized with different proportions and different process temperatures to find the best thermoelectric figure of merit. Finally, we prepare Mg2SiSn bulk materials to make modules and measure thermoelectric characteristics.
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