Practice question · Match the pairs
Match each firing atmosphere or concept to what it means.
- Oxidation
- Reduction
- Soaking
- Heat work
- Holding temperature so glaze matures and heat evens out
- Plenty of oxygen; the default in an electric kiln
- Temperature and time together, which is what ware responds to
- Oxygen starved, so the flame draws it from body and glaze
Hints
- Two concern the atmosphere and two the schedule.
- The concept a cone measures is the last.
Show the answer
- Oxidation → Plenty of oxygen; the default in an electric kiln
- Reduction → Oxygen starved, so the flame draws it from body and glaze
- Soaking → Holding temperature so glaze matures and heat evens out
- Heat work → Temperature and time together, which is what ware responds to
Why
Pairing atmosphere with schedule is the point: a firing is specified by both, and neither alone predicts the result. That is why a glaze recipe travelling between studios so often disappoints, the recipe moved and the firing did not.
Practise Firing
The app has 4 more questions on this lesson, and keeps your place in the course. Sculpture I is free to start.
More questions on Firing
- Why do pyrometric cones remain in use alongside electronic temperature control?
- Which are true of quartz inversion at about 573 degrees?
- The same glaze recipe produces the same colour regardless of kiln atmosphere.
- Sort each statement by whether it concerns the BISQUE firing or the GLAZE firing.
- Complete the account of firing.
- A kiln firing is defined as an entire schedule rather than reaching a single peak temperature. What practical…
- At approximately what temperature, in degrees Celsius, does quartz inversion occur?
- Arrange the stages of a firing schedule in order.
- A body bisque-fired too high may fail to absorb glaze properly.