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.
Optical micrographs of an unburned solid part (a) and two burned solid parts, which experienced different failure modes through the xy-plane (b) or the z-axis (c). Failure axes are defined as relative to the printing process (where the z axis is defined as the one along which the build plate moves.
