Graphene: An effective oxidation barrier coating for liquid and two-phase cooling systems
Abstract
Graphene is studied as an oxidation barrier coating for liquid and liquid-vapor phase-change cooling systems. Forced convection heat transfer experiments on bare and graphene-coated copper surfaces reveal identical liquid-phase and two-phase thermal performance for the two surfaces. Surface analysis after thermal testing indicates significant oxide formation on the entire surface of the bare copper substrate; however, oxidation is observed only along the grain boundaries of the graphene-coated substrate. Results show that few-layer graphene can act as a protective layer even under vigorous flow boiling conditions, indicating a broad application space of few-layer graphene as an ultra-thin oxidation barrier coating. (C) 2012 Elsevier Ltd. All rights reserved.
Keywords
Graphene; Boiling; Oxidation; Copper; FEW-LAYER GRAPHENE; HEAT-EXCHANGERS; SURFACE; COPPER; FILMS; WATER
DOI
10.1016/j.corsci.2012.12.014
Citation
Corrosion Science Volume 69, April 2013, Pages 5–10
Date of this Version
4-2013
Recommended Citation
Kousalya, Arun S.; Kumar, Anurag; Paul, Rajib; Zemlyanov, Dmitry; and Fisher, Timothy S., "Graphene: An effective oxidation barrier coating for liquid and two-phase cooling systems" (2013). Birck and NCN Publications. Paper 1375.
http://dx.doi.org/10.1016/j.corsci.2012.12.014