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Title: Assessment of spatiotemporal heat flux during quenching in TiO2 and AlN nanofluids
Authors: Nayak, U.V.
Ramesh, G.
Prabhu, K.N.
Issue Date: 2017
Citation: Materials Performance and Characterization, 2017, Vol.6, 5, pp.-
Abstract: In the present work, spatiotemporal heat flux transients were estimated during quenching of an Inconel 600 alloy probe in water-based titanium dioxide (TiO2) and aluminum nitride (AlN) nanofluids that have nanoparticle concentrations varying from 0.001 to 0.5 vol. %. The results showed reduced peak heat flux and a longer vapor phase stage during quenching with nanofluids compared to quenching with water. The peak heat flux for quenching in nanofluids was lowered with increase in the nanoparticle concentration. Quenching with TiO2 nanofluids resulted in slower heat extraction compared to quenching in AlN nanofluids at higher concentrations. Quenching with nanofluids resulted in a more uniform quench compared to quenching with water because of the reduction in the rewetting period. Copyright 2017 by ASTM International.
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