Nucleate boiling heat transfer of R134a on cold sprayed CNT–Cu composite coatings

Enhanced critical heat flux with single-walled carbon nanotubes bonded on metal surfaces

“…However, pretreatment of nanoparticles or CNTs on the thermal device may be beneficial in reducing the operational cost and eliminating the management difficulty. Several studies have reported enhanced thermal performance of CNT coatings in dielectric fluids and ordinary water [25][26][27][28][29][30]. A general trend observed is that CNT growth on the plain substrate of either a semiconductor or metal plates tends to make the surface porous.…”

“…This was accomplished by a simple solution processing method without the need for a high temperature process, and the application of the nanostructured surface to enhancing the pool boiling CHF was investigated under atmospheric pressure. As discussed in the previous section, only a few studies [25][26][27][28][29][30] report on the thermal performance of CNT coatings with various substrates. However, no studies have investigated stainless steel alloy as a substrate, which may have practical use in thermal devices of high power density due to a resistance to high temperature, corrosion, and erosion.…”

Cold‐Sprayed Metal Coatings with Nanostructure

“…As can be seen, CNT was successfully incorporated into the MMC powder and exhibited a homogenous distribution [41]. Following the preparation of the MMC powders, various CNT-reinforced MMC coatings were fabricated as listed in Table 2 [41][42][43][44][65][66][67][68].…”

“…Similar results were also concluded in the CNT-Cu MMC coatings. CNT reinforcements were also found to lead to the improvement of thermal properties in terms of both heat transfer performance and thermal diffusivity [65,66]. Table 2 lists the existing CNT-reinforced MMC coatings produced by cold spray and their improved thermal properties [41][42][43][44][65][66][67][68].…”

Experimental study of the sintered multi-walled carbon nanotube/copper microstructures for boiling heat transfer

“…A more detailed description of the test facility and measurement accuracies can be found in Ref. [30]. Fig.…”