<abstract xmlns="http://www.w3.org/1999/xhtml">N-type polycrystalline skutterudite compounds Ni0.15Co3.85Sb12 and Fe0.2Ni0.15Co3.65Sb12 with the bcc crystal structure were synthesized by high pressure and high temperature (HPHT) method. The synthesis time was sharply reduced to approximately half an hour. Typical microstructures connected with lattice deformations and dislocations were incorporated in the samples of Ni0.15Co3.85Sb12 and Fe0.2Ni0.15Co3.65Sb12 after HPHT. Electrical and thermal transport properties were meticulously researched in the temperature range of 300 K to 700 K. The Fe0.2Ni0.15Co3.65Sb12 sample shows a lower thermal conductivity than that of Ni0.15Co3.85Sb12. The dimensionless thermoelectric figure-of-merit (zT) reaches the maximal values of 0.52 and 0.35 at 600 K and 700 K respectively, for Ni0.15Co3.85Sb12 and Fe0.2Ni0.15Co3.65Sb12 samples synthesized at 1 GPa.</abstract>

N-type polycrystalline skutterudite compounds Ni0.15Co3.85Sb12 and Fe0.2Ni0.15Co3.65Sb12 with the bcc crystal structure were synthesized by high pressure and high temperature (HPHT) method. The synthesis time was sharply reduced to approximately half an hour. Typical microstructures connected with lattice deformations and dislocations were incorporated in the samples of Ni0.15Co3.85Sb12 and Fe0.2Ni0.15Co3.65Sb12 after HPHT. Electrical and thermal transport properties were meticulously researched in the temperature range of 300 K to 700 K. The Fe0.2Ni0.15Co3.65Sb12 sample shows a lower thermal conductivity than that of Ni0.15Co3.85Sb12. The dimensionless thermoelectric figure-of-merit (zT) reaches the maximal values of 0.52 and 0.35 at 600 K and 700 K respectively, for Ni0.15Co3.85Sb12 and Fe0.2Ni0.15Co3.65Sb12 samples synthesized at 1 GPa.

Thermoelectric properties of Ni0.15Co3.85Sb12 and Fe0.2Ni0.15Co3.65Sb12 skutterudites prepared by HPHT method

Materials Science-Poland

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Thermoelectric properties of NiCoSb and FeNiCoSb skutterudites prepared by HPHT method

N-type polycrystalline skutterudite compounds Ni0.15Co3.85Sb12 and Fe0.2Ni0.15Co3.65Sb12 with the bcc crystal structure were synthesized by high pressure and...

Thermoelectric properties of Ni_0.15Co_3.85Sb₁₂ and Fe_0.2Ni_0.15Co_3.65Sb₁₂ skutterudites prepared by HPHT method

Online veröffentlicht: 31. Okt. 2017

Seitenbereich: 496 - 500

Eingereicht: 15. Okt. 2016

Akzeptiert: 20. Aug. 2017

DOI: https://doi.org/10.1515/msp-2017-0069

Schlüsselwörter
thermoelectric materials, Fe-doping, skutterudite, high pressure

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Thermoelectric properties of Ni0.15Co3.85Sb12 and Fe0.2Ni0.15Co3.65Sb12 skutterudites prepared by HPHT method

Online veröffentlicht: 31. Okt. 2017

Seitenbereich: 496 - 500

Eingereicht: 15. Okt. 2016

Akzeptiert: 20. Aug. 2017

DOI: https://doi.org/10.1515/msp-2017-0069

Schlüsselwörterthermoelectric materials, Fe-doping, skutterudite, high pressure

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Thermoelectric properties of Ni_0.15Co_3.85Sb₁₂ and Fe_0.2Ni_0.15Co_3.65Sb₁₂ skutterudites prepared by HPHT method

Schlüsselwörter
thermoelectric materials, Fe-doping, skutterudite, high pressure