scholarly journals Effect of Excess Te on Microstructure and Thermoelectric Properties of p-type Bi0.40Sb1.60Te3.00+x (0.00.LEQ.x.LEQ.0.40) Materials Prepared by Hot Pressing Method

2003 ◽  
Vol 111 (1294) ◽  
pp. 386-390 ◽  
Author(s):  
Norihiko MIYASHITA ◽  
Tomoyasu YANO ◽  
Ryoma TSUKUDA ◽  
Isamu YASHIMA
Keyword(s):  
Thermoelectric Properties ◽  
Hot Pressing ◽  
Pressing Method ◽  
P Type

Thermoelectric Properties on SixGe1-x Containing Fullerite

2007 ◽  
Vol 280-283 ◽  
pp. 409-412 ◽  
Author(s):  
Gui Ying Xu ◽  
Xiao Feng Wu ◽  
Li Li Zhang ◽  
Chang Chun Ge
Keyword(s):  
Quantum Dot ◽  
Thermoelectric Property ◽  
Thermoelectric Properties ◽  
Thermoelectric Material ◽  
Analytical Method ◽  
Hot Pressing ◽  
Thermoelectric Generator ◽  
Pressing Method ◽  
Higher Temperature ◽  
P Type

SixGe1-x (x = 0.75 for n-type and 0.7 for p-type) is a typical thermoelectric material used at higher temperature as thermoelectric generator. Its property is dependent on the composition. SixGe1-x containing different amount of fullerite added as hollow quantum dot were fabricated by hot-pressing method. The relations among thermoelectric property, the amount of fullerite and the microstructure were investigated by normal measurement and analytical method.

Thermoelectric properties of p-type (Bi,Sb)2Te3 alloys fabricated by the hot pressing method

1998 ◽  
Vol 4 (1) ◽  
pp. 75-81 ◽  
Author(s):  
Hee-Jeong Kim ◽  
Hang-Chong Kim ◽  
Dow-Bin Hyun ◽  
Tae-Sung Oh
Keyword(s):  
Thermoelectric Properties ◽  
Hot Pressing ◽  
Pressing Method ◽  
P Type

Annealing Effect on the Thermoelectric Properties of Undoped CoSb3

2006 ◽  
Vol 118 ◽  
pp. 565-570 ◽  
Author(s):  
Il Ho Kim ◽  
Jung Il Lee ◽  
Soon Chul Ur ◽  
Kyung Wook Jang ◽  
Good Sun Choi ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Phase Transitions ◽  
Thermoelectric Properties ◽  
Hot Pressing ◽  
Annealing Effect ◽  
Metallic Behavior ◽  
Arc Melting ◽  
P Type ◽  
Type Conduction

Binary skutterudite CoSb3 compounds were prepared by the arc melting and hot pressing processes and their thermoelectric properties were investigated at 300K-600K. Annealing effect was examined and it was correlated to phase transformation and homogenization. Thermoelectric properties of the arc-melted and hot-pressed CoSb3 were discussed and compared. Undoped CoSb3 prepared by the arc melting showed p-type conduction and metallic behavior at all temperatures examined. However, hot pressed specimens showed n-type conduction, possibly due to Sb evaporation. Thermoelectric properties were remarkably improved by annealing in vacuum and they were closely related to phase transitions.

Thermoelectric properties of the 0.05 wt.% SbI3-Doped n-Type Bi2(Te0. 95Se0. 05)3 alloy fabricated by the hot pressing method

2000 ◽  
Vol 6 (1) ◽  
pp. 67-71 ◽  
Author(s):  
Sun Kyung Lee ◽  
Tae Sung Oh ◽  
Dow Bin Hyun ◽  
Chang Won Hwang
Keyword(s):  
Thermoelectric Properties ◽  
Hot Pressing ◽  
Pressing Method

Microstructure and thermoelectric properties of p-type Bi0.5Sb1.5Te3 fabricated by hot pressing

1997 ◽  
pp. 539-543
Author(s):  
Doo-Myun Lee ◽  
Jun-Ho Seo ◽  
Chi-Hwan Lee ◽  
Kyeongsoon Park ◽  
Ichiro Shiota
Keyword(s):  
Thermoelectric Properties ◽  
Hot Pressing ◽  
P Type

scholarly journals Thermoelectric Properties of Nano/microstructured p-Type Bi0.4Sb1.6Te3 Powders Fabricated by Mechanical Alloying and Vacuum Hot Pressing

2013 ◽  
Vol 43 (6) ◽  
pp. 1718-1725 ◽  
Author(s):  
Pee-Yew Lee ◽  
Joey Hao ◽  
Tz-Yuan Chao ◽  
Jing-Yi Huang ◽  
Huey-Lin Hsieh ◽  
...  
Keyword(s):  
Mechanical Alloying ◽  
Thermoelectric Properties ◽  
Hot Pressing ◽  
Vacuum Hot Pressing ◽  
P Type

Thermoelectric Properties of P-Type (Bi1−xSbx)2Te3 Fabricated by Mechanical Alloying Process

1997 ◽  
Vol 478 ◽  
Author(s):  
Boo Yang Jung ◽  
Jae Shik Choi ◽  
Tae Sung Oh ◽  
Dow-Bin Hyun
Keyword(s):  
Mechanical Alloying ◽  
Thermoelectric Properties ◽  
Hot Pressing ◽  
Alloy Powder ◽  
Figure Of Merit ◽  
Processing Time ◽  
Pressing Temperature ◽  
Acceptor Dopant ◽  
Maximum Value ◽  
P Type

AbstractThermoelectric properties of polycrystalline (Bi1−xSbx)2Te3 (0.75 ≤ x ≤ 0.85), fabricated by mechanical alloying and hot pressing methods, have been investigated. Formation of (Bi0.25Sb0.75)2Te3 alloy powder was completed by mechanical alloying for 5 hours at ball- to-material ratio of 5: 1, and processing time for (Bi1−xSbx)2Te3 formation increased with Sb2Te3 content x. When (Bi0.25Sb0.75)2Te3 was hot pressed at temperatures ranging from 300°C to 550°C for 30 minutes, figure-of-merit increased with hot pressing temperature and maximum value of 2.8 × 10−3/K could be obtained by hot pressing at 550°C. When hot pressed at 550°C, (Bi0.2Sb0.8)2Te3 exhibited figure-of-merit of 2.92 × 10−3/K, which could be improved to 2.97 × 10−3/K with addition of 1 wt% Sb as acceptor dopant.

Thermoelectric properties of p-type 25%Bi2Te3+75%Sb2Te3 alloys manufactured by rapid solidification and hot pressing

2002 ◽  
Vol 90 (1-2) ◽  
pp. 42-46 ◽  
Author(s):  
Taek-Soo Kim ◽  
Ik-Soo Kim ◽  
Taek-Kyung Kim ◽  
Soon-Jik Hong ◽  
Byong-Sun Chun
Keyword(s):  
Rapid Solidification ◽  
Thermoelectric Properties ◽  
Hot Pressing ◽  
P Type
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