Thermoelectric Properties of Ti Doping in Bismuth Telluride prepared by Powder Metallurgy Process

2021 ◽  
Author(s):  
Nadya Larasati Kartika ◽  
Ardita Septiani ◽  
Melisa Permata Rosha ◽  
Tony Kristiantoro ◽  
Asep Ridwan Nugraha ◽  
...  
Keyword(s):  
Powder Metallurgy ◽  
Thermoelectric Properties ◽  
Bismuth Telluride ◽  
Powder Metallurgy Process ◽  
Metallurgy Process ◽  
Ti Doping

Annealing Effects on Powder Metallurgy Based Pb1-xSnxTe Materials for Thermoelectric Applications

2007 ◽  
Vol 336-338 ◽  
pp. 860-863
Author(s):  
Y. Gelbstein ◽  
Z. Dashevsky ◽  
R. Kreizman ◽  
Y. George ◽  
M. Gelbstein ◽  
...  
Keyword(s):  
Powder Metallurgy ◽  
Thermoelectric Properties ◽  
Annealing Treatment ◽  
Preparation Technique ◽  
Tin Telluride ◽  
Powder Metallurgy Process ◽  
Lead Tin Telluride ◽  
Annealing Effects ◽  
P Type ◽  
Metallurgy Process

Lead tin telluride based alloys are known p-type materials for thermoelectric applications, in the 50-600oC temperature range. These alloys combine desired features of mechanical and thermoelectric properties. The electronic transport properties of PbTe and Pb1-xSnxTe materials may be strongly dependent on the preparation technique. Powder metallurgy process is known to introduce defects and strains, that may alter carrier concentration. Under such non-equilibrium conditions the thermoelectric properties are instable at the operating temperature. An appropriate annealing treatment can eliminate this effect.. The present communication describes the annealing treatment applied to cold compacted and sintered Pb1-xSnxTe materials.

scholarly journals Kinetic Analysis of Solid-State Formation of Mg2Si by Powder Metallurgy Process

2011 ◽  
Vol 37 (6) ◽  
pp. 321-325
Author(s):  
Bin SUN ◽  
Shufeng LI ◽  
Hisashi IMAI ◽  
Junko UMEDA ◽  
Katsuyoshi KONDOH
Keyword(s):  
Powder Metallurgy ◽  
Solid State ◽  
Kinetic Analysis ◽  
State Formation ◽  
Powder Metallurgy Process ◽  
Metallurgy Process

scholarly journals Effect of Thermo-Mechanical Treatment on the Microstructure and Tensile Properties of the Fe-22Cr-5Al-0.1Y Alloy

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5696
Author(s):  
Hongyan Che ◽  
Yazhong Zhai ◽  
Yingjie Yan ◽  
Yongqing Chen ◽  
Wei Qin ◽  
...  
Keyword(s):  
Powder Metallurgy ◽  
Mechanical Treatment ◽  
Oxide Dispersion Strengthened ◽  
Fusion Reactors ◽  
Oxide Dispersion ◽  
Grain Sizes ◽  
Powder Metallurgy Process ◽  
The Matrix ◽  
Thermo Mechanical Treatment ◽  
Metallurgy Process

Oxide dispersion strengthened ferritic steel is considered an important structural material in fusion reactors due to its excellent resistance to radiation and oxidation. Fine and dispersed oxides can be introduced into the matrix via the powder metallurgy process. In the present study, large grain sizes and prior particle boundaries (PPBs) formed in the FeCrAlY alloy prepared via powder metallurgy. Thermo-mechanical treatment was conducted on the FeCrAlY alloy. Results showed that microstructure was optimized: the average grain diameter decreased, the PPBs disappeared, and the distribution of oxides dispersed. Both ultimate tensile strength and elongation improved, especially the average elongation increased from 0.5% to 23%.

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