Abstract
The electrodissolution of binary alloy films formed on inert substrates is a subject of recent origin. The Cu‐Au and Cu ‐30 per cent alloys, when dissolved anodically, showed a selective dissolution of the less noble metal occurring earlier than the simultaneous dissolution of both the components of the binary alloy films. However, the mode of dissolution, either galvanostatic or potentiostatic, varied the mechanism of dissolution. In the galvanostatic mode of dissolution, the dissolution changed from a preferential to a simultaneous one, while in the potentiodynamic type, simultaneous dissolution occurred. In the case of an ideal solid solution of Cu‐Ni alloy, under linear sweep conditions, an intermediate phase and an intermetallic compound dissolved simultaneously. Only for the eutectic types of alloy like Cu‐Pb and Cd‐Zn the dissolution was selective. On the other hand, Swathirajan considered that the dissolution was always preferential for the less noble metal.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
