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Thermal Stability of Magnesium Silicide/Nickel Contacts

de Boor, Johannes and Droste, D. and Schneider, C. and Janek, J. and Müller, Eckhard (2016) Thermal Stability of Magnesium Silicide/Nickel Contacts. Journal of Electronic Materials, 45 (10), pp. 5313-5320. Springer. DOI: 10.1007/s11664-016-4716-x ISSN 0361-5235

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1007/s11664-016-4716-x

Abstract

Magnesium silicide-based materials are a very promising class of thermoelectric materials with excellent potential for thermoelectric waste heat recovery. For the successful application of magnesium silicide-based thermoelectric generators, the development of long-term stable contacts with low contact resistance is as important as material optimization. We have therefore studied the suitability of Ni as a contact material for magnesium silicide. Co-sintering of magnesium silicide and Ni leads to the formation of a stable reaction layer with low electrical resistance. In this paper we show that the contacts retain their low electrical contact resistance after annealing at temperatures up to 823 K for up to 168 h. By employing scanning electron microscope analysis and time-of-flight (ToF)–secondary ion mass spectrometry, we can further show that elemental diffusion is occurring to a very limited extent. This indicates long-term stability under practical operation conditions for magnesium silicide/nickel contacts.

Item URL in elib:https://elib.dlr.de/108703/
Document Type:Article
Title:Thermal Stability of Magnesium Silicide/Nickel Contacts
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
de Boor, JohannesGerman aerospace center, Institute of materials research, Köln, GermanyUNSPECIFIED
Droste, D.German aerospace center, Institute of materials research, Köln, GermanyUNSPECIFIED
Schneider, C.Institue of Physical Chemistry, Justus-Liebig-Universität Gießen, Giessen, GermanyUNSPECIFIED
Janek, J.Institue of Physical Chemistry, Justus-Liebig-Universität Gießen, Giessen, GermanyUNSPECIFIED
Müller, EckhardGerman aerospace center, Institute of materials research, Köln, Germany and Justus Liebig university Giessen, Institute of inorganic and analytical chemistry, 35392 Giessen, GermanyUNSPECIFIED
Date:15 June 2016
Journal or Publication Title:Journal of Electronic Materials
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:45
DOI :10.1007/s11664-016-4716-x
Page Range:pp. 5313-5320
Publisher:Springer
ISSN:0361-5235
Status:Published
Keywords:Thermoelectric, Thermoelectric generator, Silicide contact development, Thermal stability
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - NGC-Antriebsstrang (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Thermoelectric Materials and Systems
Deposited By: Yasseri, Mohammad
Deposited On:05 Dec 2016 07:34
Last Modified:10 Jan 2019 15:09

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