Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The electric current recorded during electrochemical etching as a function of time. Inset shows IV characteristic obtained in 7 wt % NaCl electrolyte. (a) 180 ± 12 nm produced in electrolyte having 5% HF concentration; and (b) 520 ± 35 nm produced in electrolyte having 10% HF concentration.
