Process Controllability of Thermoelectric Properties of (Bi2Te3)0.2(Sb2Te3) 0.8 on the Root of Bulk Mechanical Alloying

Yasushi Iwaisako; Tatsuhiko Aizawa; Atsushi Yamamoto; Toshitaka Ohta

Process Controllability of Thermoelectric Properties of (Bi₂Te₃)_0.2(Sb₂Te₃) _0.8 on the Root of Bulk Mechanical Alloying

Yasushi Iwaisako, Tatsuhiko Aizawa, Atsushi Yamamoto, Toshitaka Ohta

Research output: Contribution to journal › Article

Abstract

Bulk Mechanical Alloying (BMA) is proposed to produce p-type Bi₂Te₃-Sb₂Te₃ thermoelectric materials with large yield and without any contamination. Because of the solid-state alloyment through this process, no melting nor solidification process is necessary to yield the targeting composition of this type of thermoelectric materials. Furthermore, hot pressing is applied for densification by varying both the pressure and the holding temperature. Process parameter dependency of thermoelectric properties is investigated for three different BMA samples.

Original language	English
Pages (from-to)	958-961
Number of pages	4
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	45
Issue number	10
Publication status	Published - 1998 Oct
Externally published	Yes

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Keywords

Bulk mechanical alloying
Figure of merit
Pressure
Sintering temperature
Thermoelectric material

ASJC Scopus subject areas

Mechanical Engineering
Metals and Alloys

Cite this

Iwaisako, Y., Aizawa, T., Yamamoto, A., & Ohta, T. (1998). Process Controllability of Thermoelectric Properties of (Bi₂Te₃)_0.2(Sb₂Te₃) _0.8 on the Root of Bulk Mechanical Alloying. Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, 45(10), 958-961.

Process Controllability of Thermoelectric Properties of (Bi₂Te₃)_0.2(Sb₂Te₃) _0.8 on the Root of Bulk Mechanical Alloying. / Iwaisako, Yasushi; Aizawa, Tatsuhiko; Yamamoto, Atsushi; Ohta, Toshitaka.

In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 45, No. 10, 10.1998, p. 958-961.

Research output: Contribution to journal › Article

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