Enhanced thermal conductivity in diamond/aluminum composites with a tungsten interface nanolayer

Tan, Zhanqiu; Li, Zhi Qiang; Fan, Genlian; Guo, Qiang; Kai, Xizhou; Ji, Gang; Zhang, Lanting; Zhang, Di

doi:10.1016/j.matdes.2012.11.061

Cited by 137 publications

(44 citation statements)

References 26 publications

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“…Metallic coatings such as W [40] and Ti [41,42] were used in diamond/Al composites to improve interfacial bonding so as to improve TC of the composites. This is due to the fact that W and Ti coatings can improve the wettability of diamond and aluminum.…”

Section: Metallic Coatingsmentioning

confidence: 99%

“…This method is effective but the matrix composition is modified, which may affect the overall properties of the composites. (3) Coating the carbon materials to produce diffusional barriers to prevent interfacial reactions and/or improve wettability, such as Ni [24,[27][28][29][30][31][32][33][34][35], Cu [27][28][29][36][37][38][39], W [40], Ti [41][42][43], SiC [44][45][46][47][48], TiC [44,46,[49][50][51][52][53], Al 2 O 3 [54,55], TiO 2 [29,56], ZrO 2 [57,58] and pyrolytic carbon [44,59,60] coatings. This method is effective and widely accepted, and it will be discussed in detail later.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Carbon Materials Reinforced Aluminum Composites: A Review

Huang

Ouyang

Zhang

et al. 2014

Acta Metall. Sin. (Engl. Lett.)

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109

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Carbon materials, including carbon fibers, graphite, diamond, carbon foams, carbon nanotubes, and graphene, are attractive reinforcements for aluminum matrix composites due to their excellent mechanical and/or physical properties as well as light weight. Carbon materials reinforced aluminum (C/Al) composites are promising materials in many areas such as aerospace, thermal management, and automobile. However, there are still some challenging problems that need to be resolved, such as interfacial reactions, low wettability, and anisotropic properties. These problems have limited the use of these composites. This review mainly focuses on the categories, fabrication processes, existing problems and solutions, coatings and interfaces, challenges and opportunities of C/Al composites so as to provide a useful reference for future research.

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Section: Metallic Coatingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Carbon Materials Reinforced Aluminum Composites: A Review

Huang

Ouyang

Zhang

et al. 2014

Acta Metall. Sin. (Engl. Lett.)

Self Cite

109

View full text Add to dashboard Cite

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“…Some of the followed procedures are (i) coating of diamond particles with carbide-forming metals such as tungsten [13,14] or SiC [15], and (ii) utilize fabrication techniques, such as Powder Metallurgy, that allow fabrication of composite at temperatures slightly lower than the metal melting temperature.…”

Section: Introductionmentioning

confidence: 99%

Role of Al4C3 on the stability of the thermal conductivity of Al/diamond composites subjected to constant or oscillating temperature in a humid environment

2016

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Present technologies allow fabrication of aluminum/diamond particles composites with excellent thermal properties, in particular showing the by far highest Thermal Conductivity of any of the materials being evaluated for thermal management. Although there is a widespread consensus concerning the essential role that the interface plays, it is not yet fully clear how the aluminum carbide formed at the interface affects thermal properties. In particular, how it affects the stability of the thermal properties of composites subjected to thermal treatments under wetting conditions. This is precisely the objective of the present work. To this end, samples were fabricated by means of gas pressure infiltration of liquid Al into preforms of packed diamond particles. Infiltration was carried out at two temperatures and three contact times. Thermal fatigue with cooling phase in water and performance in moisture environments at temperatures close to 100°C were evaluated. The results show that those samples having low amounts of carbide at the interface (shorter contact times) are more prone to a decrease of the thermal conductivity.

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“…Metal-ceramic composites present a creative solution to the ever-increasing demand for materials with improved structural and operational properties (Ref 1 3,15,16). CFs and CNTs are characterized by unique combination of mechanical and thermo-physical properties, i.e., high tensile strength and modulus of elasticity coupled with low density and high thermal and electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

Wetting Behavior and Reactivity Between AlTi6 Alloy and Carbon Nanotubes

Homa

Sobczak

et al. 2016

J. of Materi Eng and Perform

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Wetting behavior between molten AlTi6 alloy and nanoporous carbon substrate (carbon nanotubes paper) was investigated by a sessile drop method in vacuum at 800, 900, and 1000°C. In order to avoid the effect of native oxide film on metal sample, an advanced capillary purification technique coupled with non-contact heating was applied. The AlTi6 drop did not wet the MWCNT paper immediately after deposition on the substrate at 800°C, forming a contact angle of h = 153°. The increase in temperature up to 900°C and holding the system for 15 min also did not affect the contact angle (h = 153 ± 1). Further heating above 930°C at a rate of 5°C/min caused a gradual lowering of contact angle down to $130°and after about 10-min interaction at 1000°C, it reached the final value of 123°. Structural investigations of solidified sessile drop AlTi6/MWCNT couple by scanning and transmission electron microscopy showed that high-temperature interaction between MWCNTs and molten AlTi6 alloy is accompanied with liquid metal infiltration of MWCNT substrate, fragmentation of MWCNTs, and formation of TiC in the form of rod-like crystallites and fine particles uniformly distributed in the metal matrix. The mechanism of MWCNT fi TiC transformation in the AlTi6/MWCNT system by high-temperature liquid-assisted process is discussed.

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Enhanced thermal conductivity in diamond/aluminum composites with a tungsten interface nanolayer

Cited by 137 publications

References 26 publications

Carbon Materials Reinforced Aluminum Composites: A Review

Carbon Materials Reinforced Aluminum Composites: A Review

Role of Al4C3 on the stability of the thermal conductivity of Al/diamond composites subjected to constant or oscillating temperature in a humid environment

Wetting Behavior and Reactivity Between AlTi6 Alloy and Carbon Nanotubes

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