生产和开发 ZnAlGeO 半导体材料,用于潜在航空航天应用中的热电发电机

IF 2.3 4区 材料科学 Q2 MATERIALS SCIENCE, CERAMICS
Mucahit Abdullah Sari, Enes Kilinc, Fatih Uysal, Huseyin Kurt, Erdal Celik
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引用次数: 0

摘要

这项研究旨在生产和开发半导体热电材料,用于航空航天领域的热电发电机。在此背景下,使用前驱体材料和乙醇中 20% 的甲苯溶液作为溶剂,通过溶胶-凝胶法合成了 ZnAlGeO 粉末。为了加速凝胶的形成,还加入了冰醋酸。使用 pH 计和浊度计测量了制备溶液的 pH 值和浊度值。凝胶化后,将得到的 xerogel 在 200 °C 下干燥 9 小时,以除去水分和不需要的气体。干燥后的粉末在 600 °C 的空气中煅烧 4 小时,最终得到 ZnAlGeO 材料。这些颗粒在 1350 ℃ 的温度下进行了 36 小时的热处理,目标是生产出 n 型半导体类别中的块状样品。利用各种技术,如 DTA-TG、傅立叶变换红外光谱、XRD、XPS、扫描电镜和热电测量装置,进行了广泛的表征,包括热、结构、微观结构和热电特性。研究得出结论,生产出的半导体陶瓷材料在热电发电机生产中表现出高效率。 图文摘要
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Production and development of ZnAlGeO semiconducting materials for thermoelectric generators in potential aerospace applications

Production and development of ZnAlGeO semiconducting materials for thermoelectric generators in potential aerospace applications

Production and development of ZnAlGeO semiconducting materials for thermoelectric generators in potential aerospace applications

This research aims to produce and develop semiconducting thermoelectric materials for thermoelectric generators in aerospace applications. In this context, ZnAlGeO powders were synthesized via the sol-gel method using precursor materials and a 20% toluene solution in ethanol as the solvent. Glacial acetic acid was added to accelerate gel formation. The pH and turbidity values of prepared solutions were measured using a pH meter and turbidimeter. After gelation, the obtained xerogel was dried at 200 °C for 9 h to remove moisture and undesired gases. Dried powders were calcined at 600 °C for 4 h in air, resulting in final ZnAlGeO materials. The pellets underwent thermal processing for 36 h at a temperature of 1350 °C, targeting the production of bulk samples within the n-type semiconductor category. Extensive characterization, including thermal, structural, microstructural, and thermoelectric properties, was conducted using various techniques such as DTA-TG, FTIR, XRD, XPS, SEM, and thermoelectric measurement devices. The study concludes that the produced semiconducting ceramic materials exhibit efficiency for thermoelectric generator production.

Graphical Abstract

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来源期刊
Journal of Sol-Gel Science and Technology
Journal of Sol-Gel Science and Technology 工程技术-材料科学:硅酸盐
CiteScore
4.70
自引率
4.00%
发文量
280
审稿时长
2.1 months
期刊介绍: The primary objective of the Journal of Sol-Gel Science and Technology (JSST), the official journal of the International Sol-Gel Society, is to provide an international forum for the dissemination of scientific, technological, and general knowledge about materials processed by chemical nanotechnologies known as the "sol-gel" process. The materials of interest include gels, gel-derived glasses, ceramics in form of nano- and micro-powders, bulk, fibres, thin films and coatings as well as more recent materials such as hybrid organic-inorganic materials and composites. Such materials exhibit a wide range of optical, electronic, magnetic, chemical, environmental, and biomedical properties and functionalities. Methods for producing sol-gel-derived materials and the industrial uses of these materials are also of great interest.
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