Nanoporous metallic surface: Facile fabrication and enhancement of boiling heat transfer
Nanoporous metallic surface: Facile fabrication and enhancement of boiling heat transfer
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纳米多孔金属表面:易于制造并增强沸腾传热
DOI:
10.1016/j.apsusc.2012.05.085
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发表时间:
2012-09
影响因子:
6.7
通讯作者:
Lu, Longsheng
中科院分区:
文献类型:
--
作者:
Tang, Yong;Tang, Biao;Qing, Jianbo;Li, Qing;Lu, Longsheng
The paper reports a flexible and low-cost approach, hot-dip galvanizing and dealloying, for the fabrication of enhanced nanoporous metallic surfaces. A Cu–Zn alloy layer mainly composed of γ-Cu5Zn8and β′-CuZn was formed during the hot-dipping process. The multiple oxidation peaks recorded in the anodic liner sweep voltammetry measurements indicate different dezincification preferences of the alloy phases. A nanoporous copper surface with approximately 50–200nm in pore size was obtained after a free corrosion process. The nanoporous structure improves the surface wettability and shows dramatic reduction of wall superheat compared to that of the plain surface in the pool-boiling experiments.
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