Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

finishing.com -- The Home Page of the Finishing Industry

The authoritative public forum
for Metal Finishing since 1989
-----

Cobalt on WC

I am trying to plate cobalt on Tungsten Carbide, and I am having little success in plating adherence to the carbide. We are precleaning with silicon carbide blast media, and using a cathodic cleaning in NaOH and an etch in HCl. Is this an appropriate surface preparation or do I likely have a poor plating bath. I have had a few successes. The plating bath contains Ammonium sulphate, does that produce a poor adherence? What is a good way to test adherence on small parts? I'm sorry about the long winded question, any help is greatly appreciated.

Thanks,

Kraig Schmitt
- Louisville, Kentucky, USA
2001

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

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: