Thermoelectric material development. Quarterly technical progress report, January 1, 1995--March 31, 1995

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We have found that there is a limited range of solid solutions between the skutterudite compounds CoSb{sub 3} and RuSb{sub 2}Te (about 5% on each side). For the system (RuSb{sub 2}Te){sub x}(CoSb{sub 3}){sub 1-x}, preliminary results obtained on one n-type sample on the CoSb{sub 3}-rich side show that these alloys have good thermoelectric properties and a maximum ZT of about 0.89 was obtained at about 600 C. More experiments will be started to investigate the possibility of a broader range of miscibility in this system which would allow an even further decrease in the lattice thermal conductivity, resulting in better ... continued below

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23 p.

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Vandersande, J.W. & Caillat, T. July 1, 1995.

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Description

We have found that there is a limited range of solid solutions between the skutterudite compounds CoSb{sub 3} and RuSb{sub 2}Te (about 5% on each side). For the system (RuSb{sub 2}Te){sub x}(CoSb{sub 3}){sub 1-x}, preliminary results obtained on one n-type sample on the CoSb{sub 3}-rich side show that these alloys have good thermoelectric properties and a maximum ZT of about 0.89 was obtained at about 600 C. More experiments will be started to investigate the possibility of a broader range of miscibility in this system which would allow an even further decrease in the lattice thermal conductivity, resulting in better thermoelectric properties. IrSb{sub 3} and RuSb{sub 2}Te form a complete range of solid solutions. Hot-pressed samples in this system have shown p-type conductivity. The thermoelectric properties of these p-type alloys have been measured and results have shown that their potential for thermoelectric applications is limited mainly because of the relatively low Seebeck coefficient values for p-type materials. Efforts will be directed on preparing n-type samples of the same alloys by doping with various dopants such as Ni and Pd.

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23 p.

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OSTI as DE95014298

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  • Other Information: PBD: [1995]

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  • Other: DE95014298
  • Report No.: DOE/SF/17905--T10
  • Grant Number: AI03-89SF17905
  • DOI: 10.2172/85045 | External Link
  • Office of Scientific & Technical Information Report Number: 85045
  • Archival Resource Key: ark:/67531/metadc777039

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Office of Scientific & Technical Information Technical Reports

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  • July 1, 1995

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  • Dec. 3, 2015, 9:30 a.m.

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  • Feb. 1, 2016, 7:50 p.m.

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Vandersande, J.W. & Caillat, T. Thermoelectric material development. Quarterly technical progress report, January 1, 1995--March 31, 1995, report, July 1, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc777039/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.