Abstract
Bulk mechanical alloying (BMA) has been successfully applied to solid-state synthesis of p-type and n-type thermoelectric materials Mg2Si 1-xSnx (x = 0, 0.2, 0.4, 0.6, 0.8, 1) from element-powders at the room temperature in a relatively short time. The electrical conductivity, the Seebeck coefficient and the thermal conductivity of the Mg2Si1-xSnx are quite sensitive to the x-content. With the x-content rising, the electrical conductivity increases. When x = 0.6, it reaches the lowest and Mg2Si shows an n-type of semi-conducting. However, when x = 0.2 and T > 525 K, the Seebeck coefficient of the samples will change the opposite way. While x≥0.4, the samples present a p-type of semi-conducting. The figure of merit, Z of Mg 2Si1-xSnx will be obtained in the range from 300 K to 700 K. When x = 0.6, Z proves to be higher than that of other samples at 300 K≤T≤650 K.
| Original language | English |
|---|---|
| Journal | Chinese Journal of Aeronautics |
| Volume | 19 |
| Issue number | SUPPL. |
| Publication status | Published - 2006 Dec |
| Externally published | Yes |
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Keywords
- Bulk mechanical alloying
- Mg SiSn
- Solid-state synthesis
- Thermoelectric
ASJC Scopus subject areas
- Engineering(all)
Cite this
Thermoelectric properties of Mg2Si1-xSnx synthesized by bulk mechanical alloying. / Song, Ren Bo; Liu, Ya Zheng; Aizawa, Tatsuhiko.
In: Chinese Journal of Aeronautics, Vol. 19, No. SUPPL., 12.2006.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Thermoelectric properties of Mg2Si1-xSnx synthesized by bulk mechanical alloying
AU - Song, Ren Bo
AU - Liu, Ya Zheng
AU - Aizawa, Tatsuhiko
PY - 2006/12
Y1 - 2006/12
N2 - Bulk mechanical alloying (BMA) has been successfully applied to solid-state synthesis of p-type and n-type thermoelectric materials Mg2Si 1-xSnx (x = 0, 0.2, 0.4, 0.6, 0.8, 1) from element-powders at the room temperature in a relatively short time. The electrical conductivity, the Seebeck coefficient and the thermal conductivity of the Mg2Si1-xSnx are quite sensitive to the x-content. With the x-content rising, the electrical conductivity increases. When x = 0.6, it reaches the lowest and Mg2Si shows an n-type of semi-conducting. However, when x = 0.2 and T > 525 K, the Seebeck coefficient of the samples will change the opposite way. While x≥0.4, the samples present a p-type of semi-conducting. The figure of merit, Z of Mg 2Si1-xSnx will be obtained in the range from 300 K to 700 K. When x = 0.6, Z proves to be higher than that of other samples at 300 K≤T≤650 K.
AB - Bulk mechanical alloying (BMA) has been successfully applied to solid-state synthesis of p-type and n-type thermoelectric materials Mg2Si 1-xSnx (x = 0, 0.2, 0.4, 0.6, 0.8, 1) from element-powders at the room temperature in a relatively short time. The electrical conductivity, the Seebeck coefficient and the thermal conductivity of the Mg2Si1-xSnx are quite sensitive to the x-content. With the x-content rising, the electrical conductivity increases. When x = 0.6, it reaches the lowest and Mg2Si shows an n-type of semi-conducting. However, when x = 0.2 and T > 525 K, the Seebeck coefficient of the samples will change the opposite way. While x≥0.4, the samples present a p-type of semi-conducting. The figure of merit, Z of Mg 2Si1-xSnx will be obtained in the range from 300 K to 700 K. When x = 0.6, Z proves to be higher than that of other samples at 300 K≤T≤650 K.
KW - Bulk mechanical alloying
KW - Mg SiSn
KW - Solid-state synthesis
KW - Thermoelectric
UR - http://www.scopus.com/inward/record.url?scp=34247138799&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34247138799&partnerID=8YFLogxK
M3 - Article
VL - 19
JO - Chinese Journal of Aeronautics
JF - Chinese Journal of Aeronautics
SN - 1000-9361
IS - SUPPL.
ER -