Ceramic materials fabrication cannot be done by__________________?
Correct answer: B. Welding
- A. Slip casting
- B. Welding
- C. Extrusion
- D. Plastic pressing
Explanation
Ceramics are shaped by processes such as slip casting, extrusion, and plastic pressing before firing, but conventional welding is not used because fired ceramics are brittle and do not form a ductile weld. Joining is generally done with glazing, cementing, or mechanical methods.
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