Interfacial nano-engineering in Al/diamond composites for thermal management by in situ diamond surface gas desorption

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Title: Interfacial nano-engineering in Al/diamond composites for thermal management by in situ diamond surface gas desorption
Authors: Monje López, Ivonne E. | Louis, Enrique | Molina Jordá, José Miguel
Research Group/s: Materiales Avanzados | Física de la Materia Condensada
Center, Department or Service: Universidad de Alicante. Departamento de Física Aplicada | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Aluminium/diamond composites | Interface | Thermal annealing | Aluminium carbide
Knowledge Area: Física de la Materia Condensada | Química Inorgánica
Issue Date: 1-Apr-2016
Publisher: Elsevier
Citation: Scripta Materialia. 2016, 115: 159-163. doi:10.1016/j.scriptamat.2016.01.004
Abstract: The manuscript shows that nano-engineering the surface of diamond particles prior contacting the liquid metal strongly enhances the Thermal Conductivity (TC) of Al/diamond composites. Composites were fabricated by gas pressure infiltration within a two-step engineering procedure: i) diamond surface was in situ subjected to gas desorption by annealing at 760 °C or 850 °C, and, ii) the contact time between liquid metal and diamond was strictly controlled. The synergic action of surface modification and controlled processing conditions allows an outstanding increasing of TC from 422 W/mK to 734 W/mK (around 42% of increment) in composites fabricated with medium-quality diamond particles.
Sponsor: The authors acknowledge the “Ministerio de Economía y Competitividad” for partial financial support trough project MAT2011-25,029. I.E. Monje thanks University of Alicante for a UA-FPU Ph.D. fellowship.
ISSN: 1359-6462 (Print) | 1872-8456 (Online)
DOI: 10.1016/j.scriptamat.2016.01.004
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2016 Elsevier Ltd.
Peer Review: si
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Appears in Collections:INV - Física de la Materia Condensada - Artículos de Revistas
INV - LMA - Artículos de Revistas

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