Electrochemical Corrosion Behavior And Surface Modification Of Zrb2 In Hydrofluoric Acid Aqueous Solution
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY(2017)
Abstract
The electrochemical corrosion behavior in an open system of zirconium diboride (ZrB2) was studied in hydrofluoric acid aqueous solution at room temperature. Based on analysis of the intermediate products of corrosion, a corrosion mechanism for ZrB2 is suggested. The morphology evolution of anodic ZrB2 is investigated. The density of the hexagonal-pyramid grain array is dictated by current density, and the time dictates the length of the hexagonal pyramid grains. The microstructure of the surface can be controlled by the current density, which demonstrates that the surface wettability of ZrB2 can be modified by tailoring the current density.
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Key words
electrochemical corrosion, microstructure, surface morphology, surface wettability, zirconium diboride
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