Question

At what temperature are soft stone ware body and stone ware glaze fired? A. $1200^\circ C - 1260^\circ C$
B. $1004^\circ C - 1150^\circ C$
C. $1204^\circ C - 1215^\circ C$
D. $1105^\circ C - 1201^\circ C$
E. $1201^\circ C - 1285^\circ C$

• A. A, B and D Only
• B. C, E and D Only
• C. C, E and A Only
• D. A, B and C Only

Hint:

Logic Tip: Stoneware is generally a high-fire ceramic body above $1200^\circ C$.

Answer 1

The Correct Option is C

Concept:
Stoneware bodies and glazes require high-temperature firing to achieve:
• Vitrification
• Strength
• Reduced porosity
•

Step 1:
Stoneware generally fires above: \[ 1200^\circ C \] Therefore the ranges: \[ 1200^\circ C - 1260^\circ C \] and \[ 1201^\circ C - 1285^\circ C \] are correct.
•

Step 2:
Soft stoneware may also mature around: \[ 1204^\circ C - 1215^\circ C \] Thus: \[ C \text{ is correct} \]
•

Step 3:
Temperatures below: \[ 1200^\circ C \] are generally associated with earthenware and low-fire ceramics rather than stoneware. \[ \boxed{\text{(3) C, E and A Only}} \]