Figure 9.
STEM images of hydroxyapatite (a), vaterite (b) and calcium carbonate hemihydrate (c). Electron beam diameters used for ADT are indicated with white circles.
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.