Compressive creep behavior of cast Bi2Te3
Compressive creep behavior of cast Bi2Te3
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铸造 Bi2Te3 的压缩蠕变行为
DOI:
10.1016/j.msea.2012.12.052
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发表时间:
2013-03
期刊:
影响因子:
6.4
通讯作者:
David Dun
中科院分区:
文献类型:
--
作者:
Zhiping Guan;Zhiping Guan;David Dun;David Dun
In thermoelectric devices, Bi2Te3must be able to operate under high temperature gradients for very long times (years) without appreciable deformation, while being subjected to stresses created by internal thermal mismatch and external forces (e.g., vibrations). The deformation rate of cast, coarse-grained Bi2Te3was measured under uniaxial compressive stresses from 2 to 16MPa at temperatures between 400 and 500°C. At all temperatures, a power-law behavior is observed, with a stress exponent n=3–6 and an activation energy of ∼145kJ/mol. Significant differences in creep rates are observed in duplicate experiments, which may be due to anisotropic creep resistance in coarse-grained specimens. Bi2Te3is brittle at 400 and 450°C but shows some compressive ductility at 500°C, indicating that hot forging may be possible.
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影响因子:
0.8
作者:
V. Bublik;A. Voronin;E. A. Vygovskaya;V. F. Ponomarev;N. Tabachkova;O. V. Toropova
通讯作者:
V. Bublik;A. Voronin;E. A. Vygovskaya;V. F. Ponomarev;N. Tabachkova;O. V. Toropova
影响因子:
64.8
作者:
Biswas, Kanishka;He, Jiaqing;Kanatzidis, Mercouri G.
通讯作者:
Kanatzidis, Mercouri G.
影响因子:
2.1
作者:
Junling Gao;Q. Du;Xiao-Dan Zhang;Xin-Qiang Jiang
通讯作者:
Junling Gao;Q. Du;Xiao-Dan Zhang;Xin-Qiang Jiang
影响因子:
2.7
作者:
Krishnendu Biswas;M. Good;Kamandi C. Roberts;M. Subramanian;T. Hendricks
通讯作者:
Krishnendu Biswas;M. Good;Kamandi C. Roberts;M. Subramanian;T. Hendricks
DOI:
10.1088/0508-3443/9/10/307
发表时间:
1958-01-01
期刊:
BRITISH JOURNAL OF APPLIED PHYSICS
影响因子:
--
作者:
FRANCOMBE, MH
通讯作者:
FRANCOMBE, MH