Figure 2.
Field emission scanning electron microscopy (FE-SEM) (a) and energy-dispersive X-ray spectroscopy (EDX) (b) images of the pristine RE powder.
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.