Y2O3 Etching

[ceramicsRandD]

Does any one know whats a good etching technique for pure Y2O3 samples. I've used thermal etching but it takes too long. I am looking for a chemical etching agent to reveal grain boundaries??

 

[PhyMetall]

Here is a article which may help you.

Acta Cryst. (1984). B40, 76-82