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.
Representative images of surface roughness (Ra) output for each of the five material types imaged by optical profilometry are shown: (A) HXL, (B) CM, (C) HXL VE 75 kGy, (D) HXL VE 150 kGy, and (E) PEEK. The CM material had the greatest surface roughness whereas the PEEK material had the least surface roughness.
