Plasma Treatment of Nanoparticles and Carbon Nanotubes for Nanofluids

Plasma Treatment of Nanoparticles and Carbon Nanotubes for Nanofluids Powder Blasting... [Pg.2342]

Plasma Treatment of Nanoparticles and Carbon Nanotubes for Nanofluids, Fig. 7 FTIR spectra of untreated and plasma-treated diamond nanoparticles. Plasma treatment conditions were 60 mTorr pressure, 4 W RF power, and 60 min treatment time... [Pg.2797]

Plasma treatment provides a new approach to functionalize nanoparticle and nanotube surface for heat transfer nanofluid preparation without using stabilizing agents. More experimental investigation is very necessary to optimize the plasma treatment process in terms of plasma chemistry, plasma operating conditions, and proper plasma apparatus design. As pointed out in this entry, besides nanoparticle and nanotube concentration, the enhanced interfacial interactions between nanoparticles and/or carbon nanotubes with base fluids could be another important factor that contributed to the thermal conductivity increase observed in heat transfer nanofluids. A detailed characterization of the nanofluids with the aid of theoretical simulations will help us to understand the fundamental mechanisms for the observed heat transfer enhancement. [Pg.2803]