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Optimization of Sintering Temperature for the Synthesis of n-type Mg3SbBi0.99Te0.01 Thermoelectric Materials
소결온도 최적화에 의한 Mg3SbBi0.99Te0.01 n형 소재의 열전특성 향상
Sung-Jae Joo, Ji-Hee Son, JeongIn Jang, Bong-Seo Kim, Bok-Ki Min
주성재, 손지희, 장정인, 김봉서, 민복기
Korean J. Met. Mater. 2023;61(10):785-792.   Published online 2023 Sep 25
DOI: https://doi.org/10.3365/KJMM.2023.61.10.785

Abstract
Mg3Sb2-based materials are promising candidates to replace n-type Bi2Te3 for cooling and power generation at low temperatures. Generally, the thermoelectric performance of a material is sensitively affected by synthesis process parameters, and among them, sintering temperature (Ts) is a critical one. In this study, n-type Mg3SbBi0.99Te0.01 polycrystalline samples were fabricated..... More

                
Synthesis and Thermoelectric Properties of La-doped n-type Mg3SbBi Materials
La 도핑된 n형 Mg3SbBi 열전소재의 합성 및 열전특성
Sung-Jae Joo, Ji-Hee Son, JeongIn Jang, Bok-Ki Min, Bong-Seo Kim
주성재, 손지희, 장정인, 민복기, 김봉서
Korean J. Met. Mater. 2023;61(6):437-443.   Published online 2023 May 18
DOI: https://doi.org/10.3365/KJMM.2023.61.6.437

Abstract
Mg3Sb2-based materials are very promising for thermoelectric applications at low temperatures, and are strong candidates to replace n-type Bi2Te3 for cooling and power generation. Substituting Sb atoms with chalcogen elements (S, Se, Te) is a typical method of n-type doping, while doping the Mg site with Group 3 elements (Y,..... More

                   Web of Science 1  Crossref 1
Effects of V Alloying on Thermoelectric Properties of NbFeSb Half-Heusler Materials Codoped with Ti, Zr, and Sn
Sung-Jae Joo, JeongIn Jang, Ji-Hee Son, Bong-Seo Kim, Bok-Ki Min
Korean J. Met. Mater. 2022;60(11):858-864.   Published online 2022 Oct 31
DOI: https://doi.org/10.3365/KJMM.2022.60.11.858

Abstract
NbFeSb-based alloys are promising p-type half-Heusler materials with excellent thermoelectric performance, thermal stability, and naturally abundant constituent elements. Alloying and doping are powerful techniques for enhancing the thermoelectric properties of half-Heusler materials. This study experimentally investigated the effects of V alloying in NbFeSb codoped with Ti, Zr, and Sn. As..... More

                
Thermoelectric Properties of Ta-doped Zr0.6-xTi0.4TaxNiSn n-type Half-Heusler Materials
Ta 도핑된 Zr0.6-xTi0.4TaxNiSn n형 하프-호이슬러 소재의 열전특성
Sung-Jae Joo, Ji-Hee Son, JeongIn Jang, Bok-Ki Min, Bong-Seo Kim
주성재, 손지희, 장정인, 민복기, 김봉서
Korean J. Met. Mater. 2022;60(3):213-219.   Published online 2022 Feb 8
DOI: https://doi.org/10.3365/KJMM.2022.60.3.213

Abstract
Half-Heusler (HH) thermoelectric materials are promising for mid- to high-temperature applications, and MNiSn (M = Ti, Zr, Hf) is a representative n-type HH alloy. In general, the M sites are mixed with isoelectronic elements Ti, Zr, and Hf, to lower the lattice thermal conductivity, and the Sn sites are doped..... More

                   Web of Science 1  Crossref 1
Synthesis of Nb0.8Hf0.2FeSb0.98Sn0.02 and Hf0.25Zr0.25Ti0.5NiSn0.98Sb0.02 Half-Heusler Materials and Fabrication of Thermoelectric Generators
Sung-Jae Joo, Ji-Hee Son, JeongIn Jang, Bong-Seo Kim, Bok-Ki Min
Korean J. Met. Mater. 2021;59(12):904-910.   Published online 2021 Nov 19
DOI: https://doi.org/10.3365/KJMM.2021.59.12.904

Abstract
In this study, half-Heusler (HH) thermoelectric materials Nb0.8Hf0.2FeSb0.98Sn0.02 (p-type) and Hf0.25Zr0.25Ti0.5NiSn0.98Sb0.02 (n-type) were synthesized using induction melting and spark plasma sintering. For alloying, a conventional induction melting technique was employed rather than arc melting, for mass production compatibility, and the thermoelectric properties of the materials were analyzed. The maximum dimensionless..... More

                   Web of Science 2  Crossref 2
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