Premium
Electrochemical corrosion behavior and surface modification of ZrB 2 in hydrofluoric acid aqueous solution
Author(s) -
Ding Zhihui,
Lee DongYeon,
Han YoungHwan,
Ye Qun,
Huang Qing,
Deng Qihuang
Publication year - 2017
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12697
Subject(s) - materials science , hydrofluoric acid , corrosion , microstructure , wetting , current density , aqueous solution , electrochemistry , hillock , zirconium diboride , metallurgy , composite material , anode , contact angle , zirconium , nanotechnology , chemical engineering , electrode , chemistry , physics , quantum mechanics , engineering
Abstract The electrochemical corrosion behavior in an open system of zirconium diboride (ZrB 2 ) was studied in hydrofluoric acid aqueous solution at room temperature. Based on analysis of the intermediate products of corrosion, a corrosion mechanism for ZrB 2 is suggested. The morphology evolution of anodic ZrB 2 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 ZrB 2 can be modified by tailoring the current density.