Influences of spark plasma sintering temperature on the microstructures and thermoelectric properties of (Sr 0.95 Gd 0.05 )TiO 3 ceramics

2015 ◽  
Vol 24 (6) ◽  
pp. 067202 ◽  
Author(s):  
Liang-Liang Li ◽  
Xiao-Ying Qin ◽  
Yong-Fei Liu ◽  
Quan-Zhen Liu
2005 ◽  
Vol 486-487 ◽  
pp. 253-256 ◽  
Author(s):  
D.M. Lee ◽  
Cheol Ho Lim ◽  
Dong Choul Cho ◽  
Seung Y. Shin ◽  
Won Seung Cho

N-type Bi2Te3 based thermoelectric compound was prepared by spark plasma sintering with a temperature range of 340~460°C and powder size of ~75㎛, 76~150㎛, 151~250㎛. Thermoelectric properties of the compound were measured as a function of the sintering temperature and powder size. With increasing sintering temperature, the electrical resistivity and thermal conductivity of the compound greatly changed because of the increase in relative density. The Seebeck coefficient and electrical resistivity were varied largely with increasing powder size. Therefore, the compound sintered at 460°C, with the powder of ~75㎛, showed a figure of merit of 2.44 x 10-3/K. Also, the bending strength was 75MPa.


2019 ◽  
Vol 53 (13) ◽  
pp. 1838-1844
Author(s):  
M. N. Yapryntsev ◽  
A. E. Vasil’ev ◽  
O. N. Ivanov ◽  
M. V. Zhezhu

2011 ◽  
Vol 26 (21) ◽  
pp. 2711-2718 ◽  
Author(s):  
Zhen-Hua Ge ◽  
Bo-Ping Zhang ◽  
Zhao-Xin Yu ◽  
Jing-Feng Li

Abstract


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