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Thermoelectric properties of co(x)ni(4-x)sb(12-y)sn(y) ternary skutterudites
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Dynys, Frederick W. Sehirlioglu, Alp Mackey, Jon A. |
| Copyright Year | 2014 |
| Description | Thermoelectric materials based on the skutterudite crystal structure have demonstrated enhanced performance (ZT greater than 1), along with good thermal stability and favorable mechanical properties. Binary skutterudites, with single and multiple fillers, have been intensively studied in recent years. Compared to binary skutterudites, the ternary systems have received less attention, e.g. Ni4Sb8Sn4. Ternary skutterudites are isoelectronic variants of binary skutterudites; cation substitutions appear to be isostructural to their binary analogues. In general, ternary skutterudites exhibit lower thermal conductivity. Ternary systems of Ni4Bi8Ge4, Ni4Sb8Ge4, and Ni4Sb8Sn4 were investigated using combined solidification and sintering steps. Skutterudite formation was not achieved in the Ni4Bi8Ge4 and Ni4Sb8Ge4 systems; skutterudite formation occurred in Ni4Sb8Sn4 system. P-type material was achieved by Co substitution for Ni. Thermoelectric properties were measured from 298 K to 673 K for Ni4Sb8Sn4, Ni4 Sb7Sn5 and Co2Ni2Sb7Sn5. N-type Ni4Sb8Sn4 exhibit the highest figure of merit of 0.1 at 523 K. |
| File Size | 526532 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20140017459 |
| Archival Resource Key | ark:/13960/t7sn5674v |
| Language | English |
| Publisher Date | 2014-07-28 |
| Access Restriction | Open |
| Subject Keyword | Seebeck Effect Thermoelectric Materials Peltier Thermoelectric Power Generation Electrical Properties Electrical Resistivity Ternary Systems Sintering Thermal Conductivity Thermoelectricity Figure of Merit Solidification Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
