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What Kovar etchant to view weld specimen

Q. Would like to know what etchant to use to view a Kovar to Kovar weld specimen.

Deborah Graves
ceramic science - San Juan Capistrano, California, USA
2004

A. Try Marble's Reagent, 3 secs, dry part;
followed by Nital, 3 secs.

Tess Molina
- Hawthorne, California
November 2, 2016

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