Microstructure and thermoelectric properties of p-type Bi 2Te3-Sb2Te3 alloys produced by rapid solidification and spark plasma sintering

Chuldong Moon; Sumin Shin; Dohyang Kim; Taek Soo Kim

doi:10.1016/j.jallcom.2010.03.114

Microstructure and thermoelectric properties of p-type Bi ₂Te₃-Sb₂Te₃ alloys produced by rapid solidification and spark plasma sintering

Chuldong Moon, Sumin Shin, Dohyang Kim, Taek Soo Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

P-type Te-doped Bi₂Te₃-Sb₂Te₃ compounds were prepared using rapid solidification and spark plasma sintering (SPS) techniques. The microstructure and thermoelectric properties were evaluated as a function of the SPS temperature. The phase distribution was characterized by X-ray diffraction (XRD) and examined by scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS) area scanning. The thermoelectric properties were evaluated by a combination of thermal conductivity, electrical resistivity and Seebeck coefficient. The solidified powders consisted of homogeneous thermoelectric phase. As the SPS temperature increases, the microstructure become coarsen, resulting in the reduction of hardness. The thermoelectric figure of merit measured to be the maximum (3.05 × 10^-3/°C) at the SPS temperature of 430 °C.

Original language	English
Pages (from-to)	S504-S507
Journal	Journal of Alloys and Compounds
Volume	504
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/j.jallcom.2010.03.114
Publication status	Published - 2010 Aug

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2010.03.114

Cite this

@article{d1c3623d48f648bcbc3af668503c3c87,

title = "Microstructure and thermoelectric properties of p-type Bi 2Te3-Sb2Te3 alloys produced by rapid solidification and spark plasma sintering",

abstract = "P-type Te-doped Bi2Te3-Sb2Te3 compounds were prepared using rapid solidification and spark plasma sintering (SPS) techniques. The microstructure and thermoelectric properties were evaluated as a function of the SPS temperature. The phase distribution was characterized by X-ray diffraction (XRD) and examined by scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS) area scanning. The thermoelectric properties were evaluated by a combination of thermal conductivity, electrical resistivity and Seebeck coefficient. The solidified powders consisted of homogeneous thermoelectric phase. As the SPS temperature increases, the microstructure become coarsen, resulting in the reduction of hardness. The thermoelectric figure of merit measured to be the maximum (3.05 × 10-3/°C) at the SPS temperature of 430 °C.",

author = "Chuldong Moon and Sumin Shin and Dohyang Kim and Kim, {Taek Soo}",

year = "2010",

month = aug,

doi = "10.1016/j.jallcom.2010.03.114",

language = "English",

volume = "504",

pages = "S504--S507",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

number = "SUPPL. 1",

}

TY - JOUR

T1 - Microstructure and thermoelectric properties of p-type Bi 2Te3-Sb2Te3 alloys produced by rapid solidification and spark plasma sintering

AU - Moon, Chuldong

AU - Shin, Sumin

AU - Kim, Dohyang

AU - Kim, Taek Soo

PY - 2010/8

Y1 - 2010/8

N2 - P-type Te-doped Bi2Te3-Sb2Te3 compounds were prepared using rapid solidification and spark plasma sintering (SPS) techniques. The microstructure and thermoelectric properties were evaluated as a function of the SPS temperature. The phase distribution was characterized by X-ray diffraction (XRD) and examined by scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS) area scanning. The thermoelectric properties were evaluated by a combination of thermal conductivity, electrical resistivity and Seebeck coefficient. The solidified powders consisted of homogeneous thermoelectric phase. As the SPS temperature increases, the microstructure become coarsen, resulting in the reduction of hardness. The thermoelectric figure of merit measured to be the maximum (3.05 × 10-3/°C) at the SPS temperature of 430 °C.

AB - P-type Te-doped Bi2Te3-Sb2Te3 compounds were prepared using rapid solidification and spark plasma sintering (SPS) techniques. The microstructure and thermoelectric properties were evaluated as a function of the SPS temperature. The phase distribution was characterized by X-ray diffraction (XRD) and examined by scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS) area scanning. The thermoelectric properties were evaluated by a combination of thermal conductivity, electrical resistivity and Seebeck coefficient. The solidified powders consisted of homogeneous thermoelectric phase. As the SPS temperature increases, the microstructure become coarsen, resulting in the reduction of hardness. The thermoelectric figure of merit measured to be the maximum (3.05 × 10-3/°C) at the SPS temperature of 430 °C.

UR - http://www.scopus.com/inward/record.url?scp=77957551772&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77957551772&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2010.03.114

DO - 10.1016/j.jallcom.2010.03.114

M3 - Article

AN - SCOPUS:77957551772

SN - 0925-8388

VL - 504

SP - S504-S507

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - SUPPL. 1

ER -

Microstructure and thermoelectric properties of p-type Bi ₂Te₃-Sb₂Te₃ alloys produced by rapid solidification and spark plasma sintering

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this