Improving aging performance of electrodeposited copper coatings during pool boiling

Rishi, Aniket M.; Gupta, Anju; Kandlikar, Satish G.

doi:10.1016/j.applthermaleng.2018.05.061

Cited by 60 publications

(26 citation statements)

References 37 publications

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“…Hence, the induction period of Fe-Al MNS is extended, as shown in Figure 9. Moreover, the micro/nanostructures increased the boiling bubble activity, which creates a porous surface [41,42], and the detachment of the boiling bubble dislodged the loose fouling from the surface with wiping action [9,43]. As shown in Figure 14c,f, the Al proportion in the coating also influenced the antifouling property.…”

Section: Discussionmentioning

confidence: 91%

“…The durability is an important factor in the industrial application of Fe-Al MNS. According to the ASTM standard (ASTM D3359-17) [42], the hydrophobic property of an Fe-Al MNS sample after semi-transparent tape adhesions is measured by a contact angle measuring instrument. The tape test for the Fe-Al MNS was repeated three times per condition.…”

Section: Durability Test Of Fe-al Mnsmentioning

confidence: 99%

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Fabrication of Fe‒Al Coatings with Micro/Nanostructures for Antifouling Applications

Wang

Fan

et al. 2020

Coatings

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Fouling is one of the common problems in heat-transfer applications, resulting in higher fouling resistance, and lower heat-transfer coefficient. This paper introduces the design and fabrication of an Fe–Al coating with micro/nanostructures on low-carbon steel by electrical discharge coating (EDC) technology to improve the antifouling property. The Fe–Al coating with micro/nanostructures is characterized by a large number of micro/nanostructures and superior anti-fouling property, which is attributed to its hydrophobic surface. The antifouling property, fouling induction period and contact angle of the Fe–Al coating with micro/nanostructures increase with the increasing gap voltage. Compared with the polished surface of low-carbon steel, the Fe–Al coating with micro/nanostructures extends the induction period from 214 to 1350 min, with a heat flux of 98 kW·m−2. After 50 adhesion tests, the contact angle of the Fe–Al coating with micro/nanostructures decreases from 6.81% to 27.52%, which indicates that the Fe–Al coating with micro/nanostructures is durable and suitable for industrial applications.

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Section: Discussionmentioning

confidence: 91%

Section: Durability Test Of Fe-al Mnsmentioning

confidence: 99%

Fabrication of Fe‒Al Coatings with Micro/Nanostructures for Antifouling Applications

Wang

Fan

et al. 2020

Coatings

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“…There are few research papers that discuss the specific changes in surface chemistry and wettability as well as long-term stability of surfaces when used in boiling conditions [49,[200][201][202]. Despite the importance for real applications, it is presently still not understood well, how newly developed functionalized surfaces are affected by periodic bubble nucleation and associated temperature variations as well as by the relatively high (local) temperatures near the CHF or during the transition to film boiling.…”

Section: The Influence Of Boiling On Surface Chemistry and Wettabilitymentioning

confidence: 99%

Laser Surface Engineering for Boiling Heat Transfer Applications

Zupančič

Gregorčič

2021

Materials With Extreme Wetting Properties

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Nucleate boiling is inseparably connected with our everyday life. It is not only utilized in simple tasks like cooking, but it is also important for applications on various scales, ranging from enormous nuclear power plants to miniature microelectronics. This widespread integration is the result of its ability for effective heat transfer at low temperature differences between the heated surface and the surrounding fluid. The surface wettability undoubtedly influences the boiling heat transfer, but the observed behaviour cannot be explained without taking into account the surface topography and chemical modifications due to intense boiling processes. This chapter demonstrates how nucleate boiling enhancement can be achieved on surfaces with various wetting properties and specific micro/nano topographical features, fabricated using a straightforward, robust and scalable laser texturing approach. We discuss the basics of nucleate boiling and how it is affected by surface wettability; provide a fundamental background of laser surface engineering and its ability to achieve extreme wetting properties; and finally demonstrate the applicability of the laser-textured surfaces in enhancing and controlling nucleate pool boiling of different fluids. We show how laser surface engineering decreases the wettability effects on the key boiling parameters andin this wayensures more stable heat transfer performance.

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“…Due to unique surface properties and higher thermal conductivity exhibited by graphene (~ 3,000–5,000 W/m K), there has been an ample interest in utilizing graphene-based coatings for heat transfer applications 14 , 15 . Additionally, various surface modification techniques such as chemical vapor deposition 16 , electrodeposition 17 , 18 , sintering 19 , 20 , and electroplating 21 can be adopted to form highly surface-active graphene-based coatings with unique surface features that can impart properties to further improve the heat dissipation rates and overall performance.…”

Section: Introductionmentioning

confidence: 99%

Salt templated and graphene nanoplatelets draped copper (GNP-draped-Cu) composites for dramatic improvements in pool boiling heat transfer

Rishi

Kandlikar

Gupta

2020

Sci Rep

Self Cite

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We demonstrate a novel technique to achieve highly surface active, functional, and tunable hierarchical porous coated surfaces with high wickability using a combination of ball milling, salttemplating, and sintering techniques. Specifically, using ball-milling to obtain graphene nanoplatelets (Gnp) draped copper particles followed by salt templated sintering to induce the strength and cohesiveness to the particles. The salt-templating method was specifically used to promote porosity on the coatings. A systematic study was conducted by varying size of the copper particles, ratio of Gnp to copper particles, and process parameters to generate a variety of microporous coatings possessing interconnected pores and tunnels that were observed using electron microscopy. pool boiling tests exhibited a very high critical heat flux of 289 W/cm 2 at a wall superheat of just 2.2 °C for the salt templated 3 wt% GNP draped 20 µm diameter copper particles with exceedingly high wicking rates compared to non-salt-templated sintered coatings. the dramatic improvement in the pool boiling performance occurring at a very low surface temperature due to tunable surface properties is highly desirable in heat transfer and many other engineering applications.

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Improving aging performance of electrodeposited copper coatings during pool boiling

Cited by 60 publications

References 37 publications

Fabrication of Fe‒Al Coatings with Micro/Nanostructures for Antifouling Applications

Fabrication of Fe‒Al Coatings with Micro/Nanostructures for Antifouling Applications

Laser Surface Engineering for Boiling Heat Transfer Applications

Salt templated and graphene nanoplatelets draped copper (GNP-draped-Cu) composites for dramatic improvements in pool boiling heat transfer

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