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  4. Processes and Techniques (hierarchy name)
  5. [processes and techniques by specific type]
  6. condition changing (processes)
  7. surface or structural changes
  8. bloating
Scope note
The swelling of clay objects during firing as gases are released in the vitrification process; sometimes caused by overfiring and occurs either generally or in small areas; generally considered a defect in pottery but sometimes desirable in nonbearing bricks for construction.
Accepted term: 08-Jul-2024