Figure 5.
Microstructures on the surface of the compressed samples with grain size of (a) ~150; (b) ~25; (c) ~4; (d) ~1.5; and (e) ~1.3 μm when compressed fixed specimen diameter 2 mm.
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.