Work

Thermoelectric Properties of Pb1-xSnxTe FGM by Liquid Phase Diffusion Bonding

Year: 1999

Type: article

Abstract: The stoichiometric PbTe and SnTe, and their solid solution, Pb 1-x Sn x Te were prepared in a rocking-freezing furnace with rocking cycle of 0.2Hz. The carrier concentration was increased and the temperature with maximum figure-of-merit shifted to higher side with increasing of in Pb 1-x Sn x Te. A segmented thermoelectric material with different carrier concentration is expected to have high performance. A segmented thermoelectric material of PbTe system with different carrier concentration was fabricated by liquid phase diffusion bonding in this study. The joining was performed under 2.0MPa at 700K for 1800s in an Ar atmosphere. The segmented material had an basic and the most primitive FGM structure. The bonding was strong enough and the electrical resistance at the interface was very low. The segmented material showed a higher effective maximum power P max than each monolithic material over the observed temperature range. The P max for the segmented material agreed with the theoretically expected result from the properties of monolithic materials and is 23Wm -1 at ΔT=330K.

Source: Materials science forum

DOI: 10.4028/www.scientific.net/msf.308-311.699

Authors: Masami Hashimoto, Osamu Ohashi, Ichiro Shiota, H.T. Kaibe, Isao A. Nishida

Institutions: Japan Fine Ceramics Center, Niigata University, Salesian Polytechnic

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

OpenAlex ID: W2136059601

FWCI:

Cites:

Cited by: 3

Related to: 10