Science Links Japan | Thermoelectric Properties of Sintered Bi-Te Thermoelectric Materials Fabricated by Spark Plasma Sintering. (II). Applicative Research of Smart Materials for Reducing Mass of Parts.

Thermoelectric Properties of Sintered Bi-Te Thermoelectric Materials Fabricated by Spark Plasma Sintering. (II). Applicative Research of Smart Materials for Reducing Mass of Parts.

Accession number;99A1001739

Title;Thermoelectric Properties of Sintered Bi-Te Thermoelectric Materials Fabricated by Spark Plasma Sintering. (II). Applicative Research of Smart Materials for Reducing Mass of Parts.

Author; YAJIMA YOICHI (Ind. Res. Inst. of Nagano) YAMAMOTO JUN'ICHI (Ind. Res. Inst. of Nagano) FURUHATA HAJIME (Ind. Res. Inst. of Nagano) TAKIZAWA HIDEKAZU (Ind. Res. Inst. of Nagano) MAKIMURA MIKA (Ind. Res. Inst. of Nagano) ANZAWA SHIN'ICHI (Ind. Res. Inst. of Nagano) SAKATA RYOJI (Ind. Res. Inst. of Nagano)

Journal Title;Naganoken Kogyo Shikenjo Kenkyu Hokoku

Journal Code:Y0010A

ISSN:0913-672X

VOL.18;NO.;PAGE.1-5(1999)

Figure&Table&Reference;FIG.11, TBL.2, REF.7

Pub. Country;Japan

Language;Japanese

Abstract;The purpose of this paper is to evaluate the effect of H2 heat treatment of bismuth telluride thermoelectric(Bi-Te) raw powders on thermoelectric properties of sintered body. Raw powders of Bi-Te were prepared by milling Bi-Te pollycrystalline ingot. After heat treating of Bi-Te raw powders with H2, semiconducting ceramics of Bi-Te were fabricated by spark plasma sintering. Thermoelectric properties such as resistivity, seebeck coefficient, thermal conductivity and concentrarion of O2 were measured. As results, resistivity and seebeck coefficient of P type and thermal conductivities of P and N type decreased with increasing temperature and time, but resistivity and seebeck coefficient of N type inversely increased with increasing temperature and time. The results suggest that thermoelectric properties varies with concentrarion of O2 in sintered body. (author abst.)

Related Articles;