relation: https://eprints.untirta.ac.id/48020/
title: STUDI PENGARUH TEMPERATUR ANNEALING DAN DOPING AL TERHADAP SIFAT TERMOELEKTRIK PADA PADUAN HALF HEUSLER TINISNZ-1ALZ UNTUK APLIKASI TEG
creator: ALFARIZI, BACHTIAR ZUHDI
subject: Science Journalism
subject: Communication (General)
description: The global energy crisis has grown to be a significant issue. Dependence on fossil fuels to generate electricity continues to increase every year, however, fossil fuel reserves, such as oil and natural gas, which are the most widely used sources, are non-renewable and depleting. Renewable energy sources such as geothermal, ocean, wind, and solar power offer alternatives that can be developed. To utilize renewable energy, various technologies are required. In addition to the development of alternative energy, attention to energy conservation should also be given equal importance because conserving energy can improve energy efficiency and extend the depletion of fossil fuel reserves. Thermoelectric technology involves the process of converting thermal energy into electricity directly or vice versa, as well as cooling by generating electricity. A thermoelectric generator is a small-scale power generator used to convert thermal energy into electrical energy based on the Seebeck effect. Currently, the thermoelectric efficiency value (ZT) in thermoelectric generators is low, meaning only a small portion of heat can be converted into electricity. Thermoelectric efficiency values typically range from 1 to 2. A material with a good thermoelectric value should have a ZT efficiency greater than 2, however, currently, only a few materials are known to have the potential to reach this ZT value [11]. Based on the research above, it is necessary to modify the TiNiSn Half-Heusler alloy to improve the ZT efficiency. The annealing process can produce the desired microstructure and optimize its thermoelectric properties, thus increasing the ZT value [10]. A low annealing temperature can yield a relatively high ZT efficiency value, reaching up to 1.2 at 700"℃" . Overall, the TiNiSn alloy with Al doping and the annealing process has the potential to improve the thermoelectric generator's ZT efficiency. The addition of 0.2% atomic aluminum composition achieves a sufficiently high ZT efficiency, ranging from 0.03 to 0.387. However, increasing the aluminum content above 0.2% atomic results in a decrease in ZT efficiency. Therefore, the optimal aluminum composition for achieving the highest efficiency is 0.2% atomic aluminum.
date: 2025-08-01
type: Thesis
type: NonPeerReviewed
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identifier: https://eprints.untirta.ac.id/48020/17/Bachtiar%20Zuhdi%20Alfarizi_3334200063_Fulltext..pdf
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identifier: https://eprints.untirta.ac.id/48020/18/Bachtiar%20Zuhdi%20Alfarizi_3334200063_01..pdf
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identifier: https://eprints.untirta.ac.id/48020/5/Bachtiar%20Zuhdi%20Alfarizi_3334200063_04..pdf
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identifier: https://eprints.untirta.ac.id/48020/6/Bachtiar%20Zuhdi%20Alfarizi_3334200063_05..pdf
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identifier: https://eprints.untirta.ac.id/48020/7/Bachtiar%20Zuhdi%20Alfarizi_3334200063_Ref..pdf
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identifier: https://eprints.untirta.ac.id/48020/8/Bachtiar%20Zuhdi%20Alfarizi_3334200063_Lamp..pdf
identifier:   ALFARIZI, BACHTIAR ZUHDI  (2025) STUDI PENGARUH TEMPERATUR ANNEALING DAN DOPING AL TERHADAP SIFAT TERMOELEKTRIK PADA PADUAN HALF HEUSLER TINISNZ-1ALZ UNTUK APLIKASI TEG.  S1 thesis, Fakultas Teknik Universitas Sultan Ageng Tirtayasa.