Figure 2.
Physical appearance of metakaolin/cordierite geopolymers after firing at 800 °C/2 h, with increasing cordierite addition (from 0 to 50 wt.%). Reprinted from [53] under the license n. 4792970655838.
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.