Effect of preparation methods on thermoelectric properties of p-type Bi2Te3-based materials
Year: 2007
Type: article
Abstract: p-type Bi2Te3-based thermoelectric materials were fabricated by various methods, such as zone-melting, mechanical alloying, spark plasma sintering (SPS) and hot-pressing. Electrical conductivity (σ), Seebeck coefficient (α), and thermal conductivity (κ) were measured in the temperature range of 300—500K. The influence of the preparation methods on thermoelectric properties was studied. Compared with that of the zone-melted ingot, the figure of merit ZT (ZT=α2σT/κ) of those materials fabricated by the other methods mentioned were all increased to some extent. The obtained maximum ZT value was about 1.15 for that fabricated by the combination of zone-melting and spark plasma sintering technique.
Source: Acta Physica Sinica
DOI: 10.7498/aps.56.2858
Authors: Jiang Jun, Li Ya-Li, Xu Gao-Jie, Cui Ping, Wu Ting, Chen Li-Dong, Wang Gang, (1)洛阳耐火材料研究院,洛阳 471039; (2)中国科学院宁波材料技术与工程研究所,宁波 315040; (3)中国科学院上海硅酸盐研究所,上海 200050
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W1100248817