Dear Friends i am trying to etch single crystal oflead magnesium
niobate-lead titanate  by HF acid. I am not
getting any etching. If anybody knew etchent for the same kindly let me
know. Nitric acid also not be used as etchant.




_______________________________________________________________________________


   Gurvinderjit Singh Ahluwalia             Tel: +91-0731-488656
     Laser Materials Division               Fax: +91-0731-488650
   Centre for Advanced Technology         email: gjit@cat.ernet.in
   Indore - 452 013  INDIA

_______________________________________________________________________________