Influence of phosphorus on thermoelectric properties of sintered Bi-Sb-Te compounds by MA-PDS method

Akihiro Nozue; Yong Ho Park; Hitoshi Hashimoto; Akira Kawasaki

doi:10.2497/jjspm.52.730

Influence of phosphorus on thermoelectric properties of sintered Bi-Sb-Te compounds by MA-PDS method

Translated title of the contribution: Influence of phosphorus on thermoelectric properties of sintered Bi-Sb-Te compounds by MA-PDS method

Akihiro Nozue, Yong Ho Park, Hitoshi Hashimoto, Akira Kawasaki

ENG - Materials Processing

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

1 Citation (Scopus)

Abstract

Mechanical alloying followed by pulse discharge sintering (MA-PDS) was employed to synthesize the bulk (Bi,Sb) ₂Te ₃ thermoelectric materials with P, Ag or both additions. The effect of P and Ag on the microstructure and thermoelectric performance of the compacts were investigated. The dispersed P particles are found to decrease the size of (Bi,Sb) ₂Te ₃ crystallites and inhibit the densification of the alloyed powders, while the added Ag is effective in raising electrical conductivity. On the contrary, addition of P in combination with Ag does not generate a favorable thermoelectric properties.

Translated title of the contribution	Influence of phosphorus on thermoelectric properties of sintered Bi-Sb-Te compounds by MA-PDS method
Original language	Japanese
Pages (from-to)	730-734
Number of pages	5
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	52
Issue number	10
DOIs	https://doi.org/10.2497/jjspm.52.730
Publication status	Published - 2005 Oct

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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Influence of phosphorus on thermoelectric properties of sintered Bi-Sb-Te compounds by MA-PDS method. / Nozue, Akihiro; Park, Yong Ho; Hashimoto, Hitoshi; Kawasaki, Akira.

In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 52, No. 10, 10.2005, p. 730-734.

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

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title = "Influence of phosphorus on thermoelectric properties of sintered Bi-Sb-Te compounds by MA-PDS method",

abstract = "Mechanical alloying followed by pulse discharge sintering (MA-PDS) was employed to synthesize the bulk (Bi,Sb) 2Te 3 thermoelectric materials with P, Ag or both additions. The effect of P and Ag on the microstructure and thermoelectric performance of the compacts were investigated. The dispersed P particles are found to decrease the size of (Bi,Sb) 2Te 3 crystallites and inhibit the densification of the alloyed powders, while the added Ag is effective in raising electrical conductivity. On the contrary, addition of P in combination with Ag does not generate a favorable thermoelectric properties.",

keywords = "(Bi, Sb) Te, Figure of merit, Mechanical alloying, Pulse discharge sintering",

author = "Akihiro Nozue and Park, {Yong Ho} and Hitoshi Hashimoto and Akira Kawasaki",

year = "2005",

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doi = "10.2497/jjspm.52.730",

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AU - Nozue, Akihiro

AU - Park, Yong Ho

AU - Hashimoto, Hitoshi

AU - Kawasaki, Akira

PY - 2005/10

Y1 - 2005/10

N2 - Mechanical alloying followed by pulse discharge sintering (MA-PDS) was employed to synthesize the bulk (Bi,Sb) 2Te 3 thermoelectric materials with P, Ag or both additions. The effect of P and Ag on the microstructure and thermoelectric performance of the compacts were investigated. The dispersed P particles are found to decrease the size of (Bi,Sb) 2Te 3 crystallites and inhibit the densification of the alloyed powders, while the added Ag is effective in raising electrical conductivity. On the contrary, addition of P in combination with Ag does not generate a favorable thermoelectric properties.

AB - Mechanical alloying followed by pulse discharge sintering (MA-PDS) was employed to synthesize the bulk (Bi,Sb) 2Te 3 thermoelectric materials with P, Ag or both additions. The effect of P and Ag on the microstructure and thermoelectric performance of the compacts were investigated. The dispersed P particles are found to decrease the size of (Bi,Sb) 2Te 3 crystallites and inhibit the densification of the alloyed powders, while the added Ag is effective in raising electrical conductivity. On the contrary, addition of P in combination with Ag does not generate a favorable thermoelectric properties.

KW - (Bi, Sb) Te

KW - Figure of merit

KW - Mechanical alloying

KW - Pulse discharge sintering

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Influence of phosphorus on thermoelectric properties of sintered Bi-Sb-Te compounds by MA-PDS method

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