Work

Microstructure and properties of n-type Bi2Te3-based thermoelectric material fabricated by selective laser sintering

Year: 2020

Type: article

Abstract: An n-type Bi 2 Te 3 -based thermoelectric material Bi 2 Te 2.85 Se 0.15 was prepared through an SLS (Selective Laser Sintering) process with E12/Bi 2 Te 2.85 Se 0.15 as composite powder (weight ratio 1:7), from which E12 was degreased after the SLS process. It was studied the effect of laser power, scanning speed and scanning interval on the density and thermoelectric properties of the sintered samples. The laser power was found the most important influential factor, while the scanning interval was the second and the scanning speed the least. The maximum dimensionless thermoelectric figure of merit ZT is about 0.88 in the condition when the laser power, scanning interval and scanning speed were 20 W, 0.26 mm and 3000 mm s −1 , respectively.

Source: Materials Research Express

DOI: 10.1088/2053-1591/ab81be

Authors: Xinhong Xiong, Long Zhu, Guoxian Wang, Danhui Liu, Qiaoxin Zhang, Wei Feng

Institutions: Wuhan University of Technology, Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology

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: gold

Estimated APC paid: $2,000