dc.contributor.author
Oddone, Valerio
dc.contributor.author
Boerner, Benji
dc.contributor.author
Reich, Stephanie
dc.date.accessioned
2018-06-08T10:35:23Z
dc.date.available
2017-05-05T08:36:34.879Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/20697
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-23997
dc.description.abstract
High thermal conductivity, low thermal expansion and low density are three
important features in novel materials for high performance electronics, mobile
applications and aerospace. Spark plasma sintering was used to produce light
metal–graphite composites with an excellent combination of these three
properties. By adding up to 50 vol.% of macroscopic graphite flakes, the
thermal expansion coefficient of magnesium and aluminum alloys was tuned down
to zero or negative values, while the specific thermal conductivity was over
four times higher than in copper. No degradation of the samples was observed
after thermal stress tests and thermal cycling. Tensile strength and hardness
measurements proved sufficient mechanical stability for most thermal
management applications. For the production of the alloys, both prealloyed
powders and elemental mixtures were used; the addition of trace elements to
cope with the oxidation of the powders was studied.
en
dc.format.extent
8 Seiten
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Metal matrix composites
dc.subject
thermal conductivity
dc.subject
thermal expansion
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik
dc.title
Composites of aluminum alloy and magnesium alloy with graphite showing low
thermal expansion and high specific thermal conductivity
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation
Science and Technology of Advanced Materials. - 18 (2017), 1, S. 180-186
dcterms.bibliographicCitation.doi
10.1080/14686996.2017.1286222
dcterms.bibliographicCitation.url
http://dx.doi.org/10.1080/14686996.2017.1286222
refubium.affiliation
Physik
de
refubium.funding
Deutsche Forschungsgemeinschaft (DFG)
refubium.mycore.fudocsId
FUDOCS_document_000000026701
refubium.note.author
Gefördert durch die DFG und den Open-Access-Publikationsfonds der Freien
Universität Berlin.
refubium.resourceType.isindependentpub
no
refubium.mycore.derivateId
FUDOCS_derivate_000000007949
dcterms.accessRights.openaire
open access
dcterms.isPartOf.issn
1468-6996