Journal ArticleDOI
Thermoelectric properties of the skutterudite Co1−xFexSb3 system
TLDR
In this article, the phase equilibrium and thermoelectric properties of Co1−xFexSb3 ternary system up to high iron context x=0.40 were examined.Abstract:
We have examined the phase equilibrium and thermoelectric properties of Co1−xFexSb3 ternary system up to high iron context x=0.40. Traces of Sb were observed in the hot-pressed samples with x⩾0.06, and FeSb2 (Fe0.73Co0.27Sb2) compound with marcasite structure was also observed in the samples with x⩾0.25 by x-ray diffraction. The lattice parameter of Co1−xFexSb3 is slightly larger than that of the binary compound CoSb3. The Seebeck coefficient and the electrical resistivity are generally reduced by the substitution for Co by Fe. The thermal conductivity is also reduced by the substitution especially at high iron content region. These behaviors of the thermoelectric properties in the samples with low iron content are ascribed to the substituted Fe, while those in the samples with high iron content are ascribed to the precipitated FeSb2 (Fe0.73Co0.27Sb2) compound. For x⩽0.04, the figure of merit for Co1−xFexSb3 decreases with increasing x. However, above x=0.06 the figure of merit increases with x and as a r...read more
Citations
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Book ChapterDOI
Chapter 5 Skutterudites: Prospective novel thermoelectrics
TL;DR: In this paper, the structural aspects and bonding of binary skutterudites and filled skutteridites are discussed and a discussion of the latest exciting developments in the field of thermoelectric materials is presented.
Journal ArticleDOI
Skutterudites as thermoelectric materials: revisited
TL;DR: A review on the status of research in the field of skutterudites can be found in this paper, where an improvement of their efficiencies, stabilities, contacts, industrial scalable fabrication processes and other factors are expected in the near future in order to develop viable modules for intermediate temperature range applications.
Journal ArticleDOI
Transport in doped skutterudites: Ab initio electronic structure calculations
TL;DR: In this paper, the authors present ab initio calculations of conductivity, thermopower, Lorenz factor, and Hall coefficient for doped cobalt antimony skutterudites which are currently investigated experimentally for their thermoelectric properties.
Journal ArticleDOI
Effect of NiSb on the thermoelectric properties of skutterudite CoSb3
TL;DR: In this paper, the phase equilibrium and thermoelectric properties of Co1−xNixSb3 ternary system were examined up to high nickel content x=0.40 by x-ray diffraction.
Journal ArticleDOI
Thermoelectric properties of (Zn1−yMgy)1−xAlxO ceramics prepared by the polymerized complex method
Shigeru Katsuyama,Y. Takagi,Mikio Ito,Kazuhiko Majima,Hiroshi Nagai,H. Sakai,K. Yoshimura,K. Kosuge +7 more
TL;DR: In this paper, the microscopic structure and thermoelectric properties were examined comparing with the experimental results of the samples prepared by the conventional solid-state reaction method, which indicated that the solubility limit of Al in Zn1−xAlxO is about x=0.01, which was also confirmed by 27Al nuclear magnetic resonance spectroscopy.
References
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Journal ArticleDOI
Some properties of semiconducting IrSb3
Glen A. Slack,V. G. Tsoukala +1 more
TL;DR: In this article, a number of properties such as thermal expansion coefficient, sound velocity, thermal conductivity, electrical conductivity and Seebeck coefficient have been measured by hot isostatic pressing of powders.
Journal ArticleDOI
Cerium filling and doping of cobalt triantimonide
TL;DR: In this article, the structural, magnetic, and transport properties of filled skutterudites of the form Ce{sub y}Fe{sub 4{minus}x}Co{sub x}Sb{sub 12} with 0{lt y{lt}1 and x=3.25 and 4.25, respectively, were studied.
Journal ArticleDOI
Low-temperature transport properties of p-type cosb3
Donald T. Morelli,Thierry Caillat,J.-P. Fleurial,Alexander Borshchevsky,Jan W. Vandersande,Baoxing Chen,Ctirad Uher +6 more
TL;DR: The dependence of the mobility and diffusion thermopower on hole density is consistent with recent band-structure calculations, which indicate that the skutterudite possesses a highly nonparabolic valence-band structure as discussed by the authors.
Journal ArticleDOI
Thermoelectric properties of CoSb3 and related alloys
TL;DR: Seebeck as mentioned in this paper reported electrical and thermal conductivity data on CoSb3, and doped and undoped alloys of Co1−x Ir x Sb3−y As y from 20 to 700 K.