Fig. 8.
SEM images of a CA-V-1B; b CA-V-1A; c CA-V-2B; d C-V-1B; e C-A. From (a)–(e) images were taken: (1) ×5000, (2) ×10,000, (3) ×30,000
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.