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High porosity and l...
High porosity and light weight graphene foam heat sink and phase change material container for thermal management
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- Zehri, Abdelhafid, 1989 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kabiri Samani, Majid, 1976 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Gutierrez Latorre, Martí, 1993 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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visa fler...
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- Nylander, Andreas, 1988 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Nilsson, Torbjörn, 1962 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Fu, Yifeng, 1984 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Wang, Nan, 1988 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Ye, Lilei (författare)
- SHT Smart High-Tech AB
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- Liu, Johan, 1960 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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visa färre...
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(creator_code:org_t)
- 2020-07-23
- 2020
- Engelska.
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Ingår i: Nanotechnology. - : IOP Publishing. - 1361-6528 .- 0957-4484. ; 31:42
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://doi.org/10.1...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- During the last decade, graphene foam emerged as a promising high porosity 3-dimensional (3D) structure for various applications. More specifically, it has attracted significant interest as a solution for thermal management in electronics. In this study, we investigate the possibility to use such porous materials as a heat sink and a container for a phase change material (PCM). Graphene foam (GF) was produced using chemical vapor deposition (CVD) process and attached to a thermal test chip using sintered silver nanoparticles (Ag NPs). The thermal conductivity of the graphene foam reached 1.3 W m(-1)K(-1), while the addition of Ag as a graphene foam silver composite (GF/Ag) enhanced further its effective thermal conductivity by 54%. Comparatively to nickel foam, GF and GF/Ag showed lower junction temperatures thanks to higher effective thermal conductivity and a better contact. A finite element model was developed to simulate the fluid flow through the foam structure model and showed a positive and a non-negligible contributions of the secondary microchannel within the graphene foam. A ratio of 15 times was found between the convective heat flux within the primary and secondary microchannel. Our paper successfully demonstrates the possibility of using such 3D porous material as a PCM container and heat sink and highlight the advantage of using the carbon-based high porosity material to take advantage of its additional secondary porosity.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Keramteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Ceramics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
Nyckelord
- computational fluid dynamics
- thermal management
- graphene foam
- silver nanoparticles
- DRT-joule heating
- phase change materials
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Zehri, Abdelhafi ...
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Kabiri Samani, M ...
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Gutierrez Latorr ...
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Nylander, Andrea ...
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Nilsson, Torbjör ...
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Fu, Yifeng, 1984
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visa fler...
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Wang, Nan, 1988
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Ye, Lilei
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Liu, Johan, 1960
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visa färre...
- Om ämnet
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Materialteknik
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och Keramteknik
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Materialkemi
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Materialteknik
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och Annan materialte ...
- Artiklar i publikationen
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Nanotechnology
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Chalmers tekniska högskola