Question

Why thermal etching is done in case of ceramics?

Answer 1

Explanation:

Unfortunatcly, most ceramics are relatively inert chemically,',' and the times required for chemical etching can be prolonged. In appropri- ate cases the thermal etching technique is valuable because microstructural features become apparent after a short, high- temperature anneal (e.g., 1400" to 1570°C for 30 min (Ref.

Answer 2

Answer:

Unfortunatcly, most ceramics are relatively inert chemically,',' and the times required for chemical etching can be prolonged. In appropri- ate cases the thermal etching technique is valuable because microstructural features become apparent after a short, high- temperature anneal (e.g., 1400" to 1570°C for 30 min (Ref.