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  Optimized thermoelectric performance of the n-type half-Heusler material TiNiSn by substitution and addition of Mn

Lkhagvasuren, E., Ouardi, S., Fecher, G. H., Auffermann, G., Kreiner, G., Schnelle, W., et al. (2017). Optimized thermoelectric performance of the n-type half-Heusler material TiNiSn by substitution and addition of Mn. AIP Advances, 7(4): 045010, pp. 1-6. doi:10.1063/1.4979816.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-5050-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-1ECD-8
Genre: Journal Article

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 Creators:
Lkhagvasuren, Enkhtaivan1, Author              
Ouardi, Siham2, Author              
Fecher, Gerhard H.3, Author              
Auffermann, Gudrun4, Author              
Kreiner, Guido5, Author              
Schnelle, Walter6, Author              
Felser, Claudia7, Author              
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2Siham Ouardi, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863439              
3Gerhard Fecher, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863431              
4Gudrun Auffermann, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863432              
5Guido Kreiner, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863433              
6Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863441              
7Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Abstract: Alloys based on the half-Heusler compound TiNiSn with the addition of Mn or with a substitution of Ti by Mn are investigated as high-temperature thermoelectric materials. In both materials an intrinsic phase separation is observed, similar to TiNiSn where Ti has been partially substituted by Hf, with increasing Mn concentration the phase separation drastically reduces the lattice thermal conductivity while the power factor is increased. The thermoelectric performance of the n-type conducting alloy can be optimized both by substitution of Ti by Mn as well as the addition of Mn. (C) 2017 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Language(s): eng - English
 Dates: 2017-04-122017-04-12
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: ISI: 000400396100010
DOI: 10.1063/1.4979816
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Title: AIP Advances
Source Genre: Journal
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Pages: - Volume / Issue: 7 (4) Sequence Number: 045010 Start / End Page: 1 - 6 Identifier: ISSN: 2158-3226
CoNE: /journals/resource/21583226