densification

https://dx.doi.org/10.1351/goldbook.DT07618
Removal of impurities and the elimination of pores from a xerogel to give a material of as near bulk density as possible.
Source:
PAC, 2007, 79, 1801 (Definitions of terms relating to the structure and processing of sols, gels, networks, and inorganic-organic hybrid materials (IUPAC Recommendations 2007)) on page 1822