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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Sportouch, S. Rocci-Lane, M.A. Ireland, J. Brazis, P. Kannewurf, C.R. Kanatzidis, M.G. |
| Copyright Year | 1999 |
| Description | Author affiliation: Dept. of Chem., Michigan State Univ., East Lansing, MI, USA (Sportouch, S.) |
| Abstract | Our previous investigations on the half-Heusler phases, rare earth nickel antimonides and zirconium nickel stannides, have indicated that ErNiSb can be comparably promising to ZrNiSn for further thermoelectric investigations. These compounds crystallize in the cubic MgAgAs structure type and possess Seebeck coefficients up to +160 /spl mu/V/K and -355 /spl mu/V/K, respectively. Their thermal conductivities are approximately 60 mW/cm.K with their electrical conductivity curves resembling a semiconductor (350 S/cm and 250 S/cm for ErNiSb and ZrNiSn, respectively). The rare earth nickel antimonide compounds are synthesized as p-type materials, however, a careful analysis of their electronic band structures point out that n-type materials will possess larger effective masses and therefore larger Seebeck coefficients. Consequently, in order to improve the transport properties of these compounds and to achieve n-type materials, we investigated some of their solid solutions obtained by partial substitution of the transition metal element. Here, we report the transport properties of a wide range of solid solution members corresponding to the formula ErNi/sub 1-x/Cu/sub x/Sb, YNi/sub 1-x/Cu/sub x/Sb and Zr/sub x/Hf/sub y/Ti/sub z/NiSn (x+y+z=1). |
| Starting Page | 344 |
| Ending Page | 347 |
| File Size | 442879 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780354516 |
| ISSN | 10942734 |
| DOI | 10.1109/ICT.1999.843400 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1999-08-29 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Thermoelectricity Nickel Thermal conductivity Zirconium Conducting materials Semiconductor materials Solids Crystallization Effective mass Inorganic materials |
| Content Type | Text |
| Resource Type | Article |
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