Electrochemical corrosion behavior and surface modification of ZrB₂ in hydrofluoric acid aqueous solution

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.

Preparation of high-temperature active zirconium boride powders via precursor route and microwave sintering

“…Zirconium diboride (ZrB 2 ) ceramics is known for its ultra-high temperature properties. It has high melting temperature, high hardness, outstanding thermal conductivity and electrical conductivity, and neutron capture performance [1][2][3]. Such a series of characteristics determine its potential value for use in the high-temperature field and some other limited fields.…”