Oxide scale - NiO - Potentiostatic etching

Oxide scale - NiO - Potentiostatic etching

Material Name: Oxide scale - NiO
Recipe No.: 10680
Primary Chemical Element in Material: Fe
Sample Type: Bulk
Uses: General microstructure
Etchant Name: None
Type (Macro/Micro): Micro
Etching Method: Electrolytic
Etchant (Electrolyte) Composition: 25 ml HF, 25 ml acetic acid, 60-80 ml distilled water.
Procedure (Condition): Etch electrolytically at 2-4 mA, 6-12 V dc, 30-45 s, stainless steel cathode.
Note: Oxide scale etchant. Etch for NiO. Wlof.
Reference: Vander Voort, Metallography Principles and Practice, McGraw-Hill, Inc., 1984, p. 654.