Electrical Transport Properties of La2CuO4Ceramics Processed by the Spark Plasma Sintering

2007 ◽  
Vol 0 (0) ◽  
pp. 070924065850007-???
Author(s):  
Yuan-Hua Lin ◽  
Yong Liu ◽  
Bo-Ping Zhang ◽  
Ce-Wen Nan ◽  
Jing-Feng Li ◽  
...  
2008 ◽  
Vol 368-372 ◽  
pp. 538-540 ◽  
Author(s):  
Min Zhou ◽  
Jing Feng Li ◽  
Jing Liu

The Bi2Te3 compound was synthesized by mechanical alloying (MA) of highly pure constituents of Bi and Te powders, and then was consolidated by spark plasma sintering (SPS) method. The MA-derived alloy formation was characterized by X-ray diffraction (XRD), and the microstructure change was investigated through scanning electron microscopy (SEM). The thermoelectric properties were measured using a Seebeck Coefficient/Electrical Resistance Measuring System. The influence of MA time on the thermoelectric properties of the SPS-sintered samples was investigated to find the optimal MA condition for the powder synthesis and thermoelectric properties. The obtained results showed that the sample with the MA time of 6 h exhibited the optimal electrical transport properties. The maximum power factor of over 2.0 × 10-3 W/m K2 was obtained between 323 K and 423 K.


2014 ◽  
Vol 2 (38) ◽  
pp. 15829-15835 ◽  
Author(s):  
Kriti Tyagi ◽  
Bhasker Gahtori ◽  
Sivaiah Bathula ◽  
A. K. Srivastava ◽  
A. K. Shukla ◽  
...  

Intrinsically ultra-low thermal conductivity and electrical transport in single-phase Cu2SbSe3 synthesized employing a solid state reaction and spark plasma sintering.


NANO ◽  
2011 ◽  
Vol 06 (04) ◽  
pp. 337-341 ◽  
Author(s):  
DALE HITCHCOCK ◽  
KEQIN YANG ◽  
JIAN HE ◽  
APPARAO M. RAO

Electric-arc-synthesized single-walled carbon nanotube (SWNT) bundles were sonicated in boric acid, dried and sintered under vacuum at 1200°C using a spark plasma sintering process. The nominal boric acid concentrations were 0%, 2.5%, 5%, 7.5%, 12.5% and 15%. This resulted in a nonmonotonic variation of carrier concentration in the resulting samples. The 7.5% boric acid treated sample showed the least magnitude and weakest temperature-dependence for the thermopower with a distinct phonon-drag peak that was absent in the other samples. These results are discussed within the framework of the doping-induced shift of the Fermi level and changes in the electron–phonon coupling.


2018 ◽  
Vol 20 (24) ◽  
pp. 16729-16735 ◽  
Author(s):  
Jingdan Lei ◽  
De Zhang ◽  
Weibao Guan ◽  
Zhenxiang Cheng ◽  
Chao Wang ◽  
...  

Realizing high performances of α-MgAgSb near room temperature by engineering electrical transport through manipulating a spark plasma sintering system.


Carbon ◽  
2009 ◽  
Vol 47 (4) ◽  
pp. 1135-1140 ◽  
Author(s):  
Jianlin Li ◽  
Lianjun Wang ◽  
Tin He ◽  
Wan Jiang

2018 ◽  
Vol 48 (4) ◽  
pp. 1958-1964 ◽  
Author(s):  
Min Ji Kim ◽  
Gil-Geun Lee ◽  
Woochul Kim ◽  
Kyomin Kim ◽  
Jang-Yeul Tak ◽  
...  

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