The formation of atomic-level interfacial layer and its effect on thermal conductivity of W-coated diamond particles reinforced Al matrix composites

Che, Zifan; Li, Jianwei; Wang, Qingxiao; Wang, Lühua; Zhang, Hailong; Zhang, Yang; Wang, Xitao; Wang, Jinguo; Kim, Moon J.

doi:10.1016/j.compositesa.2018.01.002

Cited by 39 publications

(12 citation statements)

References 31 publications

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“…Aluminum, being lighter, has a high specific thermal conductivity, which makes it the leading matrix material for heat sink composites in automotive and aerospace electronics, and also in portable electronic devices [ 101 , 102 , 103 , 104 , 105 , 106 ]. However, the high coefficient of thermal expansion (~23 × 10 −6 K −1 ) of aluminum is compensated by reinforcement with carbides (SiC [ 33 , 101 , 107 , 108 , 109 , 110 , 111 , 112 ], B 4 C [ 105 ]), nitride (BN [ 107 , 113 ], Si 3 N 4 [ 114 ], AlN [ 111 , 115 ]), oxides (Al 2 O 3 [ 107 ]), diamond [ 102 , 106 , 116 , 117 , 118 , 119 , 120 , 121 , 122 , 123 , 124 , 125 , 126 ], graphite flakes [ 68 , 127 , 128 , 129 ], and carbon fibers [ 39 , 130 , 131 , 132 , 133 ].…”

Section: Metal Matrix Compositesmentioning

confidence: 99%

“…The formation of a brittle, hydrophilic interfacial phase Al 4 C 3 instead of SiC was considered to serve as a thermal barrier. To prevent the formation of Al 4 C 3 and to improve interfacial bonding, the diamond particles were coated with SiC [ 121 ], TiC [ 116 ], Ti [ 123 ], and W [ 124 ]. A thermal conductivity of 365 Wm −1 K −1 in combination with a low coefficient of thermal expansion of 5.69 × 10 −6 K −1 was reported with 60 vol% TiC-coated diamond particle reinforcement [ 116 ].…”

Section: Metal Matrix Compositesmentioning

confidence: 99%

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Metal Matrix Composite in Heat Sink Application: Reinforcement, Processing, and Properties

et al. 2021

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Heat sinks are commonly used for cooling electronic devices and high-power electrical systems. The ever-increasing performance of electronic systems together with miniaturization calls for better heat dissipation. Therefore, the heat sink materials should not only have high thermal conductivities, low densities, and cost, but also have coefficients of thermal expansion matching to those of semiconductor chips and ceramic substrates. As traditional materials fail to meet these requirements, new composite materials have been developed with a major focus on metal matrix composites (MMCs). MMCs can be tailored to obtain the desired combination of properties by selecting proper metallic matrix and optimizing the size and type, volume fraction, and distribution pattern of the reinforcements. Hence, the current review comprehensively summarizes different studies on enhancing the thermal performance of metallic matrices using several types of reinforcements and their combinations to produce composites. Special attention is paid to the types of commonly used metallic matrices and reinforcements, processing techniques adopted, and the effects of each of these reinforcements (and their combinations) on the thermal properties of the developed composite. Focus is also placed on highlighting the significance of interfacial bonding in achieving optimum thermal performance and the techniques to improve interfacial bonding.

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Section: Metal Matrix Compositesmentioning

confidence: 99%

Section: Metal Matrix Compositesmentioning

confidence: 99%

Metal Matrix Composite in Heat Sink Application: Reinforcement, Processing, and Properties

et al. 2021

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“…Nevertheless, some traditional thermal management materials, such as Cu/Mo and Cu/W, could no longer fulfill the requirements for high-power electronic devices [ 4 , 5 ]. Thus, metal matrix composites (MMCs) reinforced with high TC carbon materials, such as carbon fibers [ 6 ], graphite, diamond [ 7 ], carbon nanotubes [ 8 ] and graphene [ 9 ], have gradually come into view.…”

Section: Introductionmentioning

confidence: 99%

Interfacial Structure of Carbide-Coated Graphite/Al Composites and Its Effect on Thermal Conductivity and Strength

et al. 2021

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Graphite/Al composites had attracted significant attention for thermal management applications due to their excellent thermal properties. However, the improvement of thermal properties was restricted by the insufficient wettability between graphite and Al. In this study, silicon carbide and titanium carbide coatings have been uniformly coated on the graphite by the reactive sputtering method, and Graphite/Al laminate composites were fabricated by a hot isostatic pressing process to investigate the influence on thermal conductivity and mechanical properties. The results show that carbide coating can effectively improve the interfacial thermal conductance of SiC@Graphite/Al and TiC@Graphite/Al composites by 9.8 times and 3.4 times, respectively. After surface modification, the in-plane thermal conductivity (TC) of the composites with different volume fractions are all exceeding the 90% of the predictions. In comparison, SiC is more conducive to improving the thermal conductivity of composite materials, since the thermal conductivity of the 28.7 vol.% SiC@Graphite/Al reached the highest value of 499 W/m·K, while TiC is favorable for improving the mechanical properties. The finding is beneficial to the understanding of carbide coating engineering in the Graphite/Al composites.

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“…To date, thermal management materials have been developed for several periods, but some traditional thermal management materials, such as Invar, Kovar, SiC/Al, and Si/Al, can no longer fulfill the requirements for high power electronic devices due to insufficient TC [ 3 , 4 ]. In recent years, metal matrix composites (MMCs) reinforced by carbon materials, including carbon fibers [ 5 , 6 ], graphite, diamond [ 7 , 8 ], carbon nanotubes (CNTs) [ 9 , 10 ], and graphene [ 11 ], have become promising materials for thermal management applications due to their high TC and low density.…”

Section: Introductionmentioning

confidence: 99%

Study on Fabrication and Properties of Graphite/Al Composites by Hot Isostatic Pressing-Rolling Process

et al. 2021

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Graphite/Al composites have attracted much attrition due to their excellent thermal properties. However, the improvement of thermal conductivity (TC) is limited by the difficulty in controlling the orientation of graphite and the poor wettability between graphite and aluminum. In this study, a novel process for fabricating the Graphite/Al composites is proposed, which involves fabricating graphite film and aluminum foil into laminate material. Then, taking a rolling method, the fractured and well oriented graphite film can help the composite achieve high TC while maintaining a certain strength. The result reveals that both single and total reduction have a significant influence on the diameter and orientation of the graphite, and by adjusting the process parameters, composites with high TC can be acquired at a relatively low reinforcement volume. This near-net-forming process can directly meet the thickness requirements for electronic packaging and avoids the exposure of graphite to the surface during secondary processing, which is promising to promote the application for high TC Graphite/Al composites in thermal management.

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The formation of atomic-level interfacial layer and its effect on thermal conductivity of W-coated diamond particles reinforced Al matrix composites

Cited by 39 publications

References 31 publications

Metal Matrix Composite in Heat Sink Application: Reinforcement, Processing, and Properties

Metal Matrix Composite in Heat Sink Application: Reinforcement, Processing, and Properties

Interfacial Structure of Carbide-Coated Graphite/Al Composites and Its Effect on Thermal Conductivity and Strength

Study on Fabrication and Properties of Graphite/Al Composites by Hot Isostatic Pressing-Rolling Process

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