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Charge Transport and Thermoelectric Properties of Sn-Doped Tetrahedrites Cu<sub>12</sub>Sb<sub>4-y</sub>Sn<sub>y</sub>S<sub>13</sub>
Hee-Jae Ahn, Il-Ho Kim
Korean J. Met. Mater. 2021;59(10):724-731.   Published online 2021 Sep 6
DOI: https://doi.org/10.3365/KJMM.2021.59.10.724

Abstract
In this study, tetrahedrite compounds doped with Sn were prepared by mechanical alloying and hot pressing, and their charge transport and thermoelectric properties were analyzed. X-ray diffraction analysis revealed that both the synthetic powders and sintered bodies were synthesized as a single tetrahedrite phase without secondary phases. Densely sintered specimens..... More

                        
Electronic Transport and Thermoelectric Properties of Te-Doped Tetrahedrites Cu<sub>12</sub>Sb<sub>4-y</sub>Te<sub>y</sub>S<sub>13</sub>
Sung-Gyu Kwak, Go-Eun Lee, Il-Ho Kim
Korean J. Met. Mater. 2021;59(8):560-566.   Published online 2021 Jul 5
DOI: https://doi.org/10.3365/KJMM.2021.59.8.560

Abstract
Tetrahedrite is a promising thermoelectric material mainly due to its low thermal conductivity, a consequence of its complicated crystal structure. However, tetrahedrite has a high hole concentration; therefore, optimizing carrier concentration through doping is required to maximize the power factor. In this study, Te-doped tetrahedrites Cu12Sb4-yTeyS13 (0.1 ≤ y ≤..... More

                        
Effects of Ge Doping on the Charge Transport and Thermoelectric Properties of Permingeatites Cu<sub>3</sub>Sb<sub>1y</sub>Ge<sub>y</sub>Se<sub>4</sub>
Ji-Hee Pi, Go-Eun Lee,, Il-Ho Kim
Korean J. Met. Mater. 2021;59(6):422-429.   Published online 2021 May 26
DOI: https://doi.org/10.3365/KJMM.2021.59.6.422

Abstract
Permingeatites Cu3Sb1−yGeySe4 (0 ≤ y ≤ 0.14) were synthesized by mechanical alloying and hot pressing. The charge-transport parameters (Hall coefficient, carrier concentration, mobility, and Lorenz number) and thermoelectric properties (electrical conductivity, Seebeck coefficient, power factor, thermal conductivity, and figure of merit) were examined with respect to the Ge doping level...... More

                        
Charge Transport and Thermoelectric Properties of Mn-Doped Tetrahedrites Cu<sub>12-x</sub>Mn<sub>x</sub>Sb<sub>4</sub>S<sub>13</sub>
Sung-Yoon Kim, Go-Eun Lee, Il-Ho Kim
Korean J. Met. Mater. 2021;59(5):329-335.   Published online 2021 Apr 6
DOI: https://doi.org/10.3365/KJMM.2021.59.5.329

Abstract
Mn-doped tetrahedrites Cu12-xMnxSb4S13 (0.1 ≤ x ≤ 0.4) were synthesized by mechanical alloying (MA) and sintered by hot pressing (HP). A single tetrahedrite phase was synthesized by MA without post-annealing, and it was stable without any phase changes after HP. The hot-pressed specimens had a relative density higher than 98.6%...... More

                        
Effects of Charge Compensation on the Thermoelectric Properties of (La<sub>1-z</sub>Ce<sub>z</sub>)<sub>0.8</sub>Fe<sub>4-x</sub>Co<sub>x</sub>Sb<sub>12</sub> Skutterudites
Kyung-Wook Jang, Ye-Eun Cha, Deok-Yeong Choi, Sunuk Kim, Won-Seon Seo, Kyu Hyoung Lee, Il-Ho Kim
Korean J. Met. Mater. 2021;59(4):239-246.   Published online 2021 Mar 24
DOI: https://doi.org/10.3365/KJMM.2021.59.4.239

Abstract
La/Ce-partially double-filled and Co-charge-compensated (La1−zCez)0.8Fe4−xCoxSb12 skutterudites were synthesized, and their thermoelectric properties were studied by varying the filling ratio and charge compensation. X-ray diffraction analysis revealed that the matrix phase was skutterudite and a secondary phase was determined to the marcasite FeSb2. However, the formation of marcasite could be inhibited..... More

                        
Calculated Electric Transport Properties of Thermoelectric Semiconductors Under Different Carrier Scattering Mechanisms
캐리어 산란 메커니즘에 따른 열전반도체의 이론 전자수송 특성 변화
Sang-il Kim, Hyun-Sik Kim
김상일, 김현식
Korean J. Met. Mater. ;59(2):127-134.   Published online 2021 Jan 27
DOI: https://doi.org/10.3365/KJMM.2021.59.2.127

Abstract
The widespread application of thermoelectric devices in cooling and waste heat recovery systems will be achieved when materials achieve high thermoelectric performance. However, improving thermoelectric performance is not straightforward because the Seebeck coefficient and electrical conductivity of the materials have opposite trends with varying carrier concentration. Here, we demonstrate that..... More

                        
Impact of Fermi Surface Shape Engineering on Calculated Electronic Transport Properties of Bi-Sb-Te
페르미 면 형상제어에 따른 Bi-Sb-Te 이론 전자수송 특성 변화
Sang-il Kim, Jong-Chan Lim, Heesun Yang, Hyun-Sik Kim
김상일, 임종찬, 양희선, 김현식
Korean J. Met. Mater. 2021;59(1):54-60.   Published online 2021 Jan 5
DOI: https://doi.org/10.3365/KJMM.2021.59.1.54

Abstract
Using thermoelectric refrigerators can address climate change because they do not utilize harmful greenhouse gases as refrigerants. To compete with current vapor compression cycle refrigerators, the thermoelectric performance of materials needs to be improved. However, improving thermoelectric performance is challenging because of the trade-off relationship between the Seebeck coefficient and..... More

                        
Influence of Te Vacancies on the Thermoelectric Properties of <i>n</i>-type Cu<sub>0.008</sub>Bi<sub>2</sub>Te<sub>2.7-x</sub>Se<sub>0.3</sub>
n-type Cu0.008Bi2Te2.7-xSe0.3 열전 합금에서 Te 공공 형성에 의한 열전 성능 연구
Yerim Yang, TaeWan Kim, Seokown Hong, Jiwoo An, Sang-il Kim
양예림, 김태완, 홍석원, 안지우, 김상일
Korean J. Met. Mater. 2020;58(10):721-727.   Published online 2020 Oct 5
DOI: https://doi.org/10.3365/KJMM.2020.58.10.721

Abstract
In this study, we report the influence of Te vacancy formation on the thermoelectric properties of n-type Cu0.008Bi2Te2.7Se0.3 alloys, including their electronic and thermal transport properties. Te-deficient Cu0.008Bi2Te2.7-xSe0.3 (x = 0, 0.005, 0.01 and 0.02) samples were systematically synthesized and characterized. Regarding electronic transport properties, carrier concentration was increased with..... More

                        
Effect of Zn-Doping on the Phase Transition Behavior and Thermoelectric Transport Properties of Cu<sub>2</sub>Se
Zn 도핑이 Cu2Se의 상전이 거동과 열전수송특성에 미치는 영향
Seung Hyun Jin, Young Soo Lim
진승현, 임영수
Korean J. Met. Mater. 2020;58(7):466-471.   Published online 2020 Jul 5
DOI: https://doi.org/10.3365/KJMM.2020.58.7.466

Abstract
We report on the phase transition behavior and thermoelectric transport properties of Zn-doped Cu2Se. Cu2Se is comprised of nontoxic, low-cost and abundant elements, and has been attracting attention because of its very high thermoelectric performance, ZT, at high temperatures. Many studies have reported enhanced ZT in impurity doped Cu2Se, however,..... More

                        
Influence of Cu Doping on Bipolar Conduction Suppression for <i>p</i>-type Bi<sub>0.5</sub>Sb<sub>1.5</sub>Te<sub>3</sub> and Bi<sub>0.4</sub>Sb<sub>1.6</sub>Te<sub>3</sub> Alloys
Cu 첨가에 따른 p-type Bi0.5Sb1.5Te3 및 Bi0.4Sb1.6Te3 합금의 양극성 전도 저감 효과
Hyun-Jun Cho, Hyun-Sik Kim, Woong-hee Sohn, Sang-il Kim
조현준, 김현식, 손웅희, 김상일
Korean J. Met. Mater. 2020;58(6):439-445.   Published online 2020 May 21
DOI: https://doi.org/10.3365/KJMM.2020.58.6.439

Abstract
In this study, we report how Cu doping can modify the thermoelectric performance of p-type Bi0.5Sb1.5Te3 and Bi0.4Sb1.6Te3 thermoelectric alloys, including their electronic and thermal transport properties. For electronic transport, the power factors of both Bi0.5Sb1.5Te3 and Bi0.4Sb1.6Te3 compositions were increased by Cu doping. The origins of the enhanced power..... More

                        
Enhanced Thermoelectric Transport Properties of <i>n</i>-type InSe by Sn doping
Sung-sil Choo, Seok-won Hong, Hyun-Sik Kim, Sang-il Kim
Korean J. Met. Mater. 2020;58(5):348-352.   Published online 2020 Apr 20
DOI: https://doi.org/10.3365/KJMM.2020.58.5.348

Abstract
Layered post transition metal chalcogenides such as SnSe, SnSe2, In2Se3, and In4Se3 have attracted attention as promising thermoelectric materials due to their intrinsically low lattice thermal conductivities. Recently, n-type indium selenide (InSe) based materials have also been suggested as good candidates for thermoelectric materials by optimizing their electrical properties, i.e.,..... More

                           Cited By 1
Synthesis of Fe-Doped Tetrahedrites Cu<sub>12-x</sub>Fe<sub>x</sub>Sb<sub>4</sub>S<sub>13</sub> and Characterization of Their Thermoelectric Properties
Sung-Yoon Kim, Ji-Hee Pi, Go-Eun Lee, Il-Ho Kim
Korean J. Met. Mater. 2020;58(5):340-347.   Published online 2020 Apr 20
DOI: https://doi.org/10.3365/KJMM.2020.58.5.340

Abstract
Tetrahedrite (C12Sb4S13) has attracted attention as a p-type thermoeletric material with very low thermal conductivity induced by the anharmonic oscillation of Cu due to the lone-pair electrons of Sb. Many studies have been conducted to improve its thermoelectric performance by partially substituting the transition elements for the Cu sites. In..... More

                           Cited By 2
Thermoelectric Transport Properties of N-type Bi<sub>2</sub>Te<sub>2.7</sub>Se<sub>0.3</sub> Compound Prepared by Oxide-Reduction Process
산화물 환원공정에 의해 제작된 n-형 Bi2Te2.7Se0.3 화합물의 열전특성연구
Young Soo Lim, Bae Gun Park, Gil-Geun Lee
임영수, 박배건, 이길근
Korean J. Met. Mater. 2020;58(5):334-339.   Published online 2020 Apr 20
DOI: https://doi.org/10.3365/KJMM.2020.58.5.334

Abstract
We report the thermoelectric transport properties of n-type Bi2Te2.7Se0.3 compounds prepared by oxide-reduction process. The oxide-reduction process is a recently developed method that can synthesize Bi2Te3-based compounds using only oxide starting materials, which is advantageous in terms of the diversity of the starting materials and cost efficiency. In this study,..... More

                        
Solid-State Synthesis and Thermoelectric Properties of Tetrahedrites Cu<sub>12</sub>Sb<sub>4-y</sub>Bi<sub>y</sub>S<sub>13</sub>
Sung-Gyu Kwak, Ji-Hee Pi, Go-Eun Lee, Il-Ho Kim
Korean J. Met. Mater. 2020;58(4):272-277.   Published online 2020 Mar 9
DOI: https://doi.org/10.3365/KJMM.2020.58.4.272

Abstract
Tetrahedrite has low lattice thermal conductivity because of the lone-pair electrons of Sb, which cause the Cu atoms to vibrate at a low frequency and high amplitude. The synthesis of tetrahedrite compounds by conventional melting methods requires a long-time reaction and annealing. However, a homogeneous and solid-state synthesis can be..... More

                           Cited By 5
Synthesis and Thermoelectric Properties of Partially Double-Filled Skutterudites (La<sub>1z</sub>Yb<sub>z</sub>)<sub>0.8</sub>Fe<sub>4x</sub>Co<sub>x</sub>Sb<sub>12</sub>
Ye-Eun Cha, Il-Ho Kim
Korean J. Met. Mater. 2019;57(12):801-807.   Published online 2019 Nov 22
DOI: https://doi.org/10.3365/KJMM.2019.57.12.801

Abstract
Partially double-filled skutterudites were prepared via encapsulated melting and hot pressing processes. The skutterudite phase was successfully synthesized through partial double filling of La/Yb and substitution of Co. A small quantity of secondary phase (marcasite FeSb2) was formed, but its formation was suppressed by increasing Co charge compensation. The marcasite..... More

                           Cited By 1
Effect of Cu/In Doping on the Thermoelectric Transport Properties of Bi-Sb-Te Alloys
Bi-Sb-Te계 합금의 열전물성에 대한 Cu 및 In 첨가 영향
Hyun Jun Cho, Hyun-Sik Kim, Sang-Il Kim
조현준, 김현식, 김상일
Korean J. Met. Mater. 2019;57(10):673-678.   Published online 2019 Sep 23
DOI: https://doi.org/10.3365/KJMM.2019.57.10.673

Abstract
Herein we report the effect of Cu/In doping on the electronic and thermal transport properties of Bi-Sb-Te thermoelectric alloys. To closely examine the role of each doping element when incorporated in a Bi0.4Sb1.6Te3 alloy, different groups of samples were prepared and characterized, including undoped Bi0.4Sb1.6Te3, In single-doped samples and In..... More

                           Cited By 5
Thermoelectric Transport Properties of Interface-Controlled <i>n</i>-type Bismuth Telluride Selenide Composites by Reduced Graphene Oxide
환원 그래핀 산화물을 이용하여 계면제어된 n형 Bismuth Telluride Selenide 복합체의 열전수송특성에 대한 연구
Ui Gyeong Hwang, Young Soo Lim
황의경, 임영수
Korean J. Met. Mater. 2019;57(9):603-608.   Published online 2019 Aug 21
DOI: https://doi.org/10.3365/KJMM.2019.57.9.603

Abstract
We report the effect of interface control using reduced graphene oxide (RGO) on the thermoelectric transport properties of Bi2Te2.7Se0.3 (BTS)-RGO composites. The interface-controlled BTS-RGO composites were prepared by the consolidation of BTS-RGO hybrid powders using spark plasma sintering (SPS). The RGO-hybridization reduced the grain size in the BTS-RGO composites because..... More

                           Cited By 2
Synthesis and Thermoelectric Properties of (La<sub>1z</sub>Nd<sub>z</sub>)<sub>0.8</sub>Fe<sub>4x</sub>Co<sub>x</sub>Sb<sub>12</sub> Skutterudites
Ye-Eun Cha, Il-Ho Kim
Korean J. Met. Mater. 2019;57(6):366-373.   Published online 2019 May 16
DOI: https://doi.org/10.3365/KJMM.2019.57.6.366

Abstract
p-Type (La1−zNdz)0.8Fe4−xCoxSb12 skutterudites were prepared by partial double filling with La/Nd and charge compensation by substituting Co for Fe. The skutterudite phase was successfully synthesized using encapsulated melting, quenching, annealing and hot-pressing processes, but a small amount of the marcasite phase was identified. Partial filling within the filling fraction limit..... More

                           Cited By 1
Electronic Transport and Thermoelectric Properties of Cu<sub>12-x</sub>Zn<sub>x</sub>Sb<sub>4</sub>S<sub>13</sub> Tetrahedrites Prepared by Mechanical Alloying and Hot Pressing
Sung-Gyu Kwak, Go-Eun Lee, Il-Ho Kim
Korean J. Met. Mater. 2019;57(5):328-333.   Published online 2019 Apr 10
DOI: https://doi.org/10.3365/KJMM.2019.57.5.328

Abstract
Tetrahedrite Cu12Sb4S13 has low lattice thermal conductivity because of the lone-pair electrons of Sb, which cause the Cu atoms to vibrate at a low frequency and high amplitude. When the Cu atoms of Cu12Sb4S13 are partially substituted with a transition metal, changes in the Cu vibrations can intensify phonon scattering,..... More

                           Cited By 2
Thermoelectric Properties of MnSi1.74-1.75:Ge<i>m</i> Prepared by Solid-State Reaction and Hot Pressing
In-Jae Lee, Sol-Bin Park, Soon-Chul Ur, Kyung-Wook Jang, Il-Ho Kim
Korean J. Met. Mater. 2019;57(4):264-269.   Published online 2019 Apr 5
DOI: https://doi.org/10.3365/KJMM.2019.57.4.264

Abstract
Higher manganese silicides (HMSs) MnSi1.74-1.75:Gem (m = 0.01–0.04) were prepared by solid-state reaction and hot pressing. The major phases of the HMSs were Mn27Si47 or Mn4Si7, and a small quantity of Si remained, but the intermetallic compound MnSi was not formed. The lattice constant increased with the substitution of Ge..... More

                        
Thermoelectric Properties of P-type (Ce<sub>1-z</sub>Yb<sub>z</sub>)<sub>0.8</sub>Fe<sub>4-x</sub>Co<sub>x</sub>Sb<sub>12</sub> Skutterudites
Deok-Yeong Choi, Ye-Eun Cha, Il-Ho Kim
Korean J. Met. Mater. 2018;56(11):822-828.   Published online 2018 Nov 5
DOI: https://doi.org/10.3365/KJMM.2018.56.11.822

Abstract
P-type Ce/Yb-filled skutterudites were synthesized, and their charge transport and thermoelectric properties were investigated with partial double filling and charge compensation. In the case of (Ce1-zYbz)0.8Fe4Sb12 without Co substitution, the marcasite (FeSb2) phase formed alongside the skutterudite phase, but the generation of the marcasite phase was inhibited by increasing Co..... More

                           Cited By 1
Charge Transport and Thermoelectric Properties of (La<sub>1z</sub>Pr<sub>z</sub>)<sub>0.8</sub>Fe<sub>4x</sub>Co<sub>x</sub>Sb<sub>12</sub> Skutterudites
Ye-Eun Cha, Il-Ho Kim
Korean J. Met. Mater. 2018;56(10):772-778.   Published online 2018 Oct 5
DOI: https://doi.org/10.3365/KJMM.2018.56.10.772

Abstract
Partially La/Pr-double-filled and Co-substituted (La1−zPrz)0.8Fe4−xCoxSb12 skutterudites were synthesized by encapsulated melting and vacuum hot pressing. (La,Pr)Sb2 phases were not formed because the partial filling did not exceed the filling fraction limit, and the amount of secondary phase FeSb2 also decreased as the Co content increased. Electrical conductivity decreased with increasing..... More

                           Cited By 1
Thermoelectric Properties of Ge-doped Higher Manganese Silicides MnSi<sub>1.72-1.73</sub>:Ge<sub><i>m</i></sub>
Sol-Bin Park, In-Jae Lee, Il-Ho Kim
Korean J. Met. Mater. 2018;56(9):693-698.   Published online 2018 Sep 5
DOI: https://doi.org/10.3365/KJMM.2018.56.9.693

Abstract
Ge-doped higher manganese silicides (HMSs) MnSi1.72–1.73:Gem (m = 0.01-0.04) were prepared and their thermoelectric properties were studied. HMS powders were synthesized by solid-state reaction of raw material powders (Mn, Si, and Ge) at 1273 K for 6 h in vacuum, and hot-pressed at 1173 K for 2 h under 70..... More

                           Cited By 3
Thermoelectric Properties of <i>p</i>-type Polycrystalline Si Prepared by Melt-Spinning Process
용융방사법으로 제작된 p-type 다결정 Si의 열전특성 연구
Ju Hyeong Sun, Young Soo Lim
선주형, 임영수
Korean J. Met. Mater. 2018;56(9):686-692.   Published online 2018 Sep 5
DOI: https://doi.org/10.3365/KJMM.2018.56.9.686

Abstract
Thermoelectric energy conversion has attracted much attention as an efficient and environment-friendly energy technology. Thermoelectric energy conversion performance is directly influenced by the figure of merit (ZT) of the thermoelectric material, however, most known thermoelectric materials with high ZT contain toxic and/or scarce elements. Herein, we report the thermoelectric properties..... More

                           Cited By 1
Charge Transport and Thermoelectric Properties of N-type Bi<sub>2-x</sub>Sb<sub>x</sub>Te<sub>3-y</sub>Se<sub>y</sub>:I<sub>m</sub> Prepared by Encapsulated Melting and Hot Pressing
Woo-Jin Jung, Hyeok-Jin Kim, Il-Ho Kim
Korean J. Met. Mater. 2018;56(7):544-550.   Published online 2018 Jul 5
DOI: https://doi.org/10.3365/KJMM.2018.56.7.544

Abstract
Iodine-doped n-type Bi2-xSbxTe3-ySey:Im (x = 0.1–0.2, y = 0.15–0.6, and m = 0.0025–0.005) quaternary solid solutions were prepared by encapsulated melting (EM) and hot pressing (HP). The lattice constants of the resulting materials decreased with increasing Sb and Se contents, whereas the amount of I dopant was too small to..... More

                           Cited By 5
Effect of Interface Control Using Multiwalled Carbon Nanotubes on the Thermoelectric Properties of TiO<sub>2</sub> Nanocomposites
다중벽 탄소나노튜브를 이용한 계면제어가 TiO2 나노복합체의 열전특성에 미치는 영향
Woo Hyun Nam, Young Soo Lim
남우현, 임영수
Korean J. Met. Mater. 2018;56(7):538-543.   Published online 2018 Jul 5
DOI: https://doi.org/10.3365/KJMM.2018.56.7.538

Abstract
We report the effect of interface control using multiwalled carbon nanotubes (MWCNT) on thermoelectric properties of TiO2. By consolidating TiO2 nanoparticles with MWCNT (0.5, 1, 2, 4, and 8 wt%) using spark plasma sintering, we prepared interface-controlled TiO2-MWCNT nanocomposites, where TiO2 grains were surrounded with a MWCNT network. Simultaneous control of..... More

                        
Thermoelectric Properties of Cu<sub>1.98</sub>Se Prepared by Melt-spinning Process
용융방사법으로 제작된 Cu1.98Se의 열전특성
Jang-Yeul Tak, Young Soo Lim
탁장렬, 임영수
Korean J. Met. Mater. 2018;56(7):532-537.   Published online 2018 Jul 5
DOI: https://doi.org/10.3365/KJMM.2018.56.7.532

Abstract
Cu2Se exhibits very low thermal conductivity and the origin is known to be the "liquid-like" behavior of Cu ions around the sub-lattice of Se. Due to its very high ZT, research interest in the thermoelectric properties of this material has been increasing rapidly. However, most studies have used a conventional melting..... More

                           Cited By 1
Thermoelectric Properties of Partially Double-filled (Ce<sub>1-z</sub>Nd<sub>z</sub>)<sub>y</sub>Fe<sub>4-x</sub>Co<sub>x</sub>Sb<sub>12</sub> Skutterudites
Ye-Eun Cha, Il-Ho Kim
Korean J. Met. Mater. 2018;56(6):465-471.   Published online 2018 Jun 4
DOI: https://doi.org/10.3365/KJMM.2018.56.6.465

Abstract
(Ce1-zNdz)yFe4-xCoxSb12 skutterudites were prepared by encapsulated melting, annealing, and hot pressing. The formation of a marcasite phase (FeSb2) was significantly suppressed by partially filling the voids with Ce/Nd and making a Co substitution at the Fe site. Both the Hall and the Seebeck coefficient values were positive, indicating that all..... More

                           Cited By 4
Effects of Interface Control Using Reduced Graphene Oxide (RGO) on the Thermoelectric Transport Properties of Polycrystalline SnSe Compounds
환원 산화 그래핀을 이용한 계면제어가 다결정 SnSe의 열전 수송특성에 미치는 효과
Sang Tae Lee, Young Soo Lim
이상태, 임영수
Korean J. Met. Mater. 2018;56(2):163-169.   Published online 2018 Feb 5
DOI: https://doi.org/10.3365/KJMM.2018.56.2.163

Abstract
We report the effects of interface control using reduced graphene oxide (RGO) on the thermoelectric transport properties of polycrystalline SnSe compounds. Polycrystalline SnSe-RGO composites were prepared by the consolidation of SnSe powder coated with the RGO by hot pressing, and the RGO content was controlled to be 0, 0.2, 0.5..... More

      
Charge Transport and Thermoelectric Properties of P-type Bi<sub>2-x</sub>Sb<sub>x</sub>Te<sub>3</sub> Prepared by Mechanical Alloying and Hot Pressing
Kyung-Wook Jang, Hyeok-Jin Kim, Woo-Jin Jung, Il-Ho Kim
Korean J. Met. Mater. 2018;56(1):66-71.   Published online 2018 Jan 1
DOI: https://doi.org/10.3365/KJMM.2018.56.1.66

Abstract
Bi2-xSbxTe3 (x = 1.4–1.7) solid solutions were synthesized by mechanical alloying (MA) and consolidated by hot pressing (HP), and their charge transport and thermoelectric properties were examined. The relative densities of the hot-pressed specimens were higher than 96% on average. As the Sb content was increased, the lattice constants decreased,..... More

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