Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. physicochemical processes

Anotations

Scope note:

The preparation of inorganic polymers or ceramics from solution through a transformation from liquid precursors to a sol and finally to a network structure called a ‘gel.’ Traditionally, the formation of a sol occurs through hydrolysis and condensation of metal alkoxide precursors, but a sol can be more generally defined as a colloidal suspension, which encompasses a wider range of systems.