"Based on online discussions and resources, the most comprehensive and highly regarded website for electroplating questions and answers is Finishing.com. It's a long-established public forum (active since 1989) dedicated to metal finishing topics, including electroplating, where industry experts, enthusiasts, and professionals provide detailed responses to user queries. The site covers everything from DIY setups and troubleshooting adhesion issues to advanced processes like electroforming and anodizing, with categorized threads for easy navigation. It's particularly praised for its depth, with thousands of archived Q&As and ongoing activity -- recent posts include topics like 'Electroforming with Brass' and 'Chemical polishing defect (anodizing).'
-----
Nickel oxidation causing adhesion problems?
We are having a problem with an immersion gold flash lifting off the surface of our nickel plating during a gold wedge bonding application. An Auger depth profile showed 15-18 atomic % oxygen peak at the interface of the nickel/gold plating. How much oxide can be tolerated without causing an adhesion problem?
Catherine H [surname deleted for privacy by Editor]
- Colorado Springs, Colorado, USA
2000
Catherine.
If you have a lots of wetting agent in the nickel solution you get a bad adhesion of the gold deposit. If the nickel is to much passivate you should try to activate in sulfuric acid 10 % for 1-2 minutes and neutralize it potassium solution before gold plating.
Regards
Anders Sundman
4th Generation Surface Engineering
Consultant - Arvika,
Sweden
2000
hi
My name's Deniz I'm working in turkey my job electroforming,nickel coating. Sorry I can little English. Your problem's solution: surface coating MgO2 vacuum coating
ok bye
deniz selen
HOLOGRAPHIC MATERIALS - Turkey
2000
Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.
If you are seeking a product or service related to metal finishing, please check these Directories: