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Co(x)ni(4-x)sb(12-y)sn(y) ternary skutterudites: processing and thermoelectric properties
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Dynys, Fred Sehirlioglu, Alp Mackey, Jon |
| Copyright Year | 2014 |
| Description | Skutterudites have proven to be a useful thermoelectric system as a result of their high figure of merit, favorable mechanical properties, and good thermal stability. Binary skutterudites have received the majority of interest in recent years, as a result of successful double and triple filling schemes. Ternary skutterudites, such as Ni4Sb7Sn5, also demonstrate good thermoelectric performance, with high power factor and low thermal conductivity. Ternary skutterudites, as contrasted to binary systems, provide more possibility for tuning electronic structure as substitutions can be studied on three elements. The Co(x)Ni(4-x)Sb(12-y)Sn(y) system has been investigated as both a p- and n-type thermoelectric material, stable up to 200 C. The system is processed through a combination of solidification, mechanical alloying, and hot pressing steps. Rietveld structure refinement has revealed an interesting occupancy of Sn on both the 24g Wyckoff position with Sb as well as the 2a position as a rattler. In addition to thermoelectric properties, detailed processing routes have been investigated on the system. |
| File Size | 2369041 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20150002096 |
| Archival Resource Key | ark:/13960/t3033vb0m |
| Language | English |
| Publisher Date | 2014-07-06 |
| Access Restriction | Open |
| Subject Keyword | Seebeck Effect Thermoelectric Materials Thermoelectricity Doping Materials Ternary Systems Compounding Carrier Density Solid State Thermal Conductivity Hall Effect Carrier Mobility Thermal Stability Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Presentation |
