Heat dissipation properties of oxide layers formed on 7075 Al alloy via plasma electrolytic oxidation

Title
Heat dissipation properties of oxide layers formed on 7075 Al alloy via plasma electrolytic oxidation
Author(s)
김연성[김연성]양해웅신기룡[신기룡]고영건신동혁[신동혁]
Keywords
MICRO-ARC OXIDATION; MAGNESIUM ALLOY; THERMAL EMISSIVITY; TITANIUM-ALLOY; COATINGS; ALUMINUM; FILMS; TIO2
Issue Date
201505
Publisher
ELSEVIER SCIENCE SA
Citation
SURFACE & COATINGS TECHNOLOGY, v.269, pp.114 - 118
Abstract
The paper demonstrated the microstructure and radiation characteristics of the oxide layers on 7075 AI alloy samples which were subjected to plasma electrolytic oxidation (PEO) process in the couples of the electrolytes with containing particles of either carbon nanotube (CNT) or yttria-stabilized zirconia (YSZ), or titania (TiO2). For this purpose, a series of PEO coatings were conducted at a current density of 100 mA/cm(2). Surface observation revealed that a number of CNT, YSZ, and TiO2 were incorporated successfully in the oxide layer. Moreover, the size and distribution of the micro-pores caused by plasma discharge were changed markedly as compared to Al alloy coated by PEO process using a particle-free electrolyte. The oxide layer formed in the electrolyte with CNT showed the highest heat emission properties among all conditions tested in this study. (C) 2015 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/32250http://dx.doi.org/10.1016/j.surfcoat.2015.01.059
ISSN
0257-8972
Appears in Collections:
중앙도서관 > rims journal
공과대학 > 신소재공학부 > Articles
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