Surface treatment of an applied novel all-diamond microchannel heat sink for heat transfer performance enhancement

Qi, Zhina; Zheng, Yuting; Wei, Junjun; Yu, Xingang; Xin, Jia; Liu, Jinlong; Chen, Liangxian; Miao, Jun; Li, Chengming

doi:10.1016/j.applthermaleng.2020.115489

Cited by 31 publications

(4 citation statements)

References 75 publications

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“…10, is obviously increased from 1.7 eV of un-polished sample to 2.2 eV of D2. Among them, the newly generated peak favorable C=O on the D4 surface which was smoothed by 3DM-DFP and highly agree with previous work [50].…”

Section: Reaction Evolution Mechanism Of Diamond Surface By 3dm-dfpsupporting

confidence: 90%

“…The deconvolution of initial stage mainly comprised of sp 3 hybridized C-C (285.5 eV), sp 2 hybridized C=C (284.6 eV), the C-O (286.4 eV), and the C=O (287.5 eV) [48,49]. Kubota et al [50] found that although the percentage of area of the sp 2 hybridized carbon structure decreased by polishing technique with moderate speed and abrasive grains, the amorphous sp 2 bonded structure remained on the polished diamond surface.…”

Section: Reaction Evolution Mechanism Of Diamond Surface By 3dm-dfpmentioning

confidence: 99%

See 1 more Smart Citation

Smoothing of single crystal diamond by high-speed three-dimensional dynamic friction polishing: Optimization and surface bonds evolution mechanism

Zheng

Cumont

Bai

et al. 2021

International Journal of Refractory Metals and Hard Materials

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Section: Reaction Evolution Mechanism Of Diamond Surface By 3dm-dfpsupporting

confidence: 90%

Section: Reaction Evolution Mechanism Of Diamond Surface By 3dm-dfpmentioning

confidence: 99%

Smoothing of single crystal diamond by high-speed three-dimensional dynamic friction polishing: Optimization and surface bonds evolution mechanism

Zheng

Cumont

Bai

et al. 2021

International Journal of Refractory Metals and Hard Materials

Self Cite

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“…Diamond, the hardest material in nature, has always been of great interest [1]. Due to its superior mechanical properties [2], good thermal conductivity [3], chemical stability [4], high wear resistance [5], and extremely low friction coefficient [6], it is widely used in various industries such as mechanical processing [7], sensors, and probes [8]. Therefore, further research on the tribological properties of diamonds is of great significance for exploring the friction mechanism and explaining specific wear phenomena during the friction process.…”

Section: Introductionmentioning

confidence: 99%

Exploring the evolution mechanisms of indentation and scratching on diamond structural transformation based on molecular dynamics

Tong,

Yang,

Liu

et al. 2024

Modelling Simul. Mater. Sci. Eng.

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Diamond, possessing high hardness and chemical stability, finds wide-ranging applications across various industries. However, during the friction process, a graphitization phenomenon may occur, which changes the mechanical properties of the diamond. In this study, molecular dynamics simulation was performed using SiC ball to investigate the influence of indentation depth and temperature on the graphitization transition of the diamond surface. The results showed that the dominant factor affecting the sp2 hybridization ratio during the indentation process was stress, while the temperature was the dominant factor during sliding. The results of this study can be used to understand the friction and wear behavior of diamonds and SiC ball and provide theoretical references for the industrial application of diamonds.

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“…Therefore, a wide range of techniques have been proposed to enhance the heat transfer performance of microchannel. This includes geometrical modification, utilising new class heat transfer fluids, and surface modification [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Fluid Flow and Heat Transfer Characteristics of Novel Microchannel Heat Sink

Yew Wai Loon,

Nor azwadi Che Sidik,

Yutaka Asako

2024

ARNHT

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Microchannel heat sinks have gained prominence in the field of thermal management, offering compact and efficient solutions for dissipating heat flux from high performance electronic devices. Escalating heat flux in modern electronic devices, such as those found in telecommunication equipment, industrial automation equipment, solar devices, and data centre servers has driven the continuous development of microchannel heat sink to achieve efficient thermal management. The critical challenge in thermal management for these devices is to develop a microchannel that enhances heat transfer performance and minimises pressure drop. Heat transfer and pressure drop are two competing factors that determine the practicability of the design for real world application. Improvement in heat transfer performance usually results in an increase in pressure drop and pumping power. This study addresses the challenges of designing microchannel through comprehensive numerical analysis of fluid flow and heat transfer characteristics of a novel design that combines ribs, secondary channels, and tertiary channels. The numerical results showed that the novel microchannel design achieves a favourable balance between heat transfer and pressure drop, demonstrating its potential to be used in application where high heat transfer and efficiency are paramount. To assess the performance of the microchannels, thermal resistance, a measure of system’s resistance to heat transfer is used. At the same pumping power, thermal resistance in the new design is consistently lower compared to other designs.

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Surface treatment of an applied novel all-diamond microchannel heat sink for heat transfer performance enhancement

Cited by 31 publications

References 75 publications

Smoothing of single crystal diamond by high-speed three-dimensional dynamic friction polishing: Optimization and surface bonds evolution mechanism

Smoothing of single crystal diamond by high-speed three-dimensional dynamic friction polishing: Optimization and surface bonds evolution mechanism

Exploring the evolution mechanisms of indentation and scratching on diamond structural transformation based on molecular dynamics

Numerical Analysis of Fluid Flow and Heat Transfer Characteristics of Novel Microchannel Heat Sink

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