Figure 5.
SEM images of Cu-W-C powder milled for (a) 10 h, (b) 20 h, (c) 40 h and (d) 60 h.
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.