Challenging thermal management by incorporation of graphite into aluminium foams

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Title: Challenging thermal management by incorporation of graphite into aluminium foams
Authors: Maiorano Lauría, Lucila Paola | Molina Jordá, José Miguel
Research Group/s: Materiales Avanzados
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Metal foam | Graphite flakes | Infiltration | Thermal conductivity | Thermal management
Knowledge Area: Química Inorgánica
Issue Date: 15-Nov-2018
Publisher: Elsevier
Citation: Materials & Design. 2018, 158: 160-171. doi:10.1016/j.matdes.2018.08.026
Abstract: The recent progress made in active thermal management for electronics demands the development of new open-pore foam materials with excellent thermal performance that result from the combination of high thermal conductivity (≥70 W/mK) and the lowest possible fluid pressure drop. The foams considered to date in the literature do not meet these conditions. In this work, a new class of two-phase composite foam materials, which contain graphite flakes and aluminium, were fabricated by the gas pressure liquid metal infiltration method. These materials were fabricated in two main microstructures: i) aluminium foam with oriented graphite flakes in struts; ii) alternating layers of oriented graphite flakes and aluminium foam. The resulting materials exhibited thermal conductivities within the 60–290 W/mK range, and power dissipation capacities up to 325% higher than those for conventional aluminium foams, with pressure drops kept at convenient values for the most demanding active thermal management applications.
Sponsor: The authors acknowledge partial financial support from the “Ministerio de Ciencia e Innovación, Spain” (grant MAT2016-77742-C2-2-P).
ISSN: 0264-1275 (Print) | 1873-4197 (Online)
DOI: 10.1016/j.matdes.2018.08.026
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2018 Elsevier Ltd.
Peer Review: si
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Appears in Collections:INV - LMA - Artículos de Revistas

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