Synthesis and thermoelectric properties of (Cuy Mo6 Se8)1 - x (Mo4 Ru2 Se8)x alloys

Anneliese M. Schmidt; Michael A. McGuire; Franck Gascoin; G. Jeffrey Snyder; Francis J. DiSalvo

doi:10.1016/j.jallcom.2006.05.061

Synthesis and thermoelectric properties of (Cu_y Mo₆ Se₈)_{1 - x} (Mo₄ Ru₂ Se₈)_x alloys

Anneliese M. Schmidt, Michael A. McGuire, Franck Gascoin, G. Jeffrey Snyder, Francis J. DiSalvo^*

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The Chevrel phase solid solutions (Cu_y Mo₆ Se₈)_{1 - x} (Mo₄ Ru₂ Se₈)_x, with nominal y = 2, 4 and x = 0, 0.2, 0.4, 0.6, 0.8, and 1.0 have been investigated in efforts to find improved high temperature thermoelectric materials. The samples were characterized by powder X-ray diffraction, and compositions were measured using quantitative electron microprobe analysis. The resistivity and Seebeck coefficient are reported from room temperature up to approximately 1100 K. From these measurements we estimate the thermoelectric figure of merit ZT, and the most promising compound had Z T ≈ 0.37 at 1000 K.

Original language	English (US)
Pages (from-to)	262-268
Number of pages	7
Journal	Journal of Alloys and Compounds
Volume	431
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2006.05.061
State	Published - Apr 4 2007

Keywords

Electronic transport
Semiconductors
X-ray diffraction

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2006.05.061

Cite this

@article{db06646252e94ab79ec2d9f61c4d3461,

title = "Synthesis and thermoelectric properties of (Cuy Mo6 Se8)1 - x (Mo4 Ru2 Se8)x alloys",

abstract = "The Chevrel phase solid solutions (Cuy Mo6 Se8)1 - x (Mo4 Ru2 Se8)x, with nominal y = 2, 4 and x = 0, 0.2, 0.4, 0.6, 0.8, and 1.0 have been investigated in efforts to find improved high temperature thermoelectric materials. The samples were characterized by powder X-ray diffraction, and compositions were measured using quantitative electron microprobe analysis. The resistivity and Seebeck coefficient are reported from room temperature up to approximately 1100 K. From these measurements we estimate the thermoelectric figure of merit ZT, and the most promising compound had Z T ≈ 0.37 at 1000 K.",

keywords = "Electronic transport, Semiconductors, X-ray diffraction",

author = "Schmidt, {Anneliese M.} and McGuire, {Michael A.} and Franck Gascoin and Snyder, {G. Jeffrey} and DiSalvo, {Francis J.}",

note = "Funding Information: This paper was expanded from part of a Master{\textquoteright}s Thesis presented to Cornell University by A.M. Schmidt in August 2005. The work was funded by NASA/JPL. We thank John Sinnot for help with sample mounting and polishing, and John Hunt for assistance with the microprobe analysis. The microprobe and polishing equipment are part of the Cornell Center for Materials Research, which is supported by a MRSEC Grant (DMR-0520404). Portions of this work were carried out by the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA.",

year = "2007",

month = apr,

day = "4",

doi = "10.1016/j.jallcom.2006.05.061",

language = "English (US)",

volume = "431",

pages = "262--268",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

number = "1-2",

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T1 - Synthesis and thermoelectric properties of (Cuy Mo6 Se8)1 - x (Mo4 Ru2 Se8)x alloys

AU - Schmidt, Anneliese M.

AU - McGuire, Michael A.

AU - Gascoin, Franck

AU - Snyder, G. Jeffrey

AU - DiSalvo, Francis J.

N1 - Funding Information: This paper was expanded from part of a Master’s Thesis presented to Cornell University by A.M. Schmidt in August 2005. The work was funded by NASA/JPL. We thank John Sinnot for help with sample mounting and polishing, and John Hunt for assistance with the microprobe analysis. The microprobe and polishing equipment are part of the Cornell Center for Materials Research, which is supported by a MRSEC Grant (DMR-0520404). Portions of this work were carried out by the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA.

PY - 2007/4/4

Y1 - 2007/4/4

N2 - The Chevrel phase solid solutions (Cuy Mo6 Se8)1 - x (Mo4 Ru2 Se8)x, with nominal y = 2, 4 and x = 0, 0.2, 0.4, 0.6, 0.8, and 1.0 have been investigated in efforts to find improved high temperature thermoelectric materials. The samples were characterized by powder X-ray diffraction, and compositions were measured using quantitative electron microprobe analysis. The resistivity and Seebeck coefficient are reported from room temperature up to approximately 1100 K. From these measurements we estimate the thermoelectric figure of merit ZT, and the most promising compound had Z T ≈ 0.37 at 1000 K.

AB - The Chevrel phase solid solutions (Cuy Mo6 Se8)1 - x (Mo4 Ru2 Se8)x, with nominal y = 2, 4 and x = 0, 0.2, 0.4, 0.6, 0.8, and 1.0 have been investigated in efforts to find improved high temperature thermoelectric materials. The samples were characterized by powder X-ray diffraction, and compositions were measured using quantitative electron microprobe analysis. The resistivity and Seebeck coefficient are reported from room temperature up to approximately 1100 K. From these measurements we estimate the thermoelectric figure of merit ZT, and the most promising compound had Z T ≈ 0.37 at 1000 K.

KW - Electronic transport

KW - Semiconductors

KW - X-ray diffraction

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