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topic 3575

TiCad plating vs. Vacuum Cadmium coating?


Q. Does anyone know where I might find some technical literature comparing the performance properties of Vac-Cad plating with TiCad Plating. My company recently inherited some older programs with parts requiring Vacuum Deposited Cad coatings per Mil-C-8837 [affil. link to spec at Techstreet]. We have been TiCad plating per BAC5804 and Cad plating per QQ-P-416 [link by ed. to spec at Defense Logistics Agency,] for years at this site. It would certainly be convenient to revise the Vac-Cad to an electroplated Cadmium finish. I know that the Vac-Cad avoids possibility of hydrogen embrittlement, but wonder is research is available quantifying the difference between Vac Cad and LHE TiCad. Any ideas?

John Pease
- Shelby, North Carolina


A. You might want to contact Mandar Sunthankar at Ion Edge in Fort Collins, CO. They do vacuum cadmium plating and are probably familiar with that kind of data.

John Davis
John Davis
- Berthoud, Colorado, USA


A. Replacing vacuum cad with Ti-cad may not work. Some of our customers are going the other way. There is a major embrittlement issue with Ti-cad plating on high strength steels above Rc 42, probably coming from some process control issues. Vac cad has no embrittlement, period!

Mandar Sunthankar
- Fort Collins, Colorado

November 6, 2008

Q. Does Ticad plating cause hydrogen embrittlement in titanium as well?

Stanko Paleksic
- Victoria, BC, Canada

November 6, 2008

A. Hi, Stanko. To my knowledge "TiCad" means a low-embrittlement type of cadmium plating where a slurry of titanium particles co-deposits with the cadmium to produce a porous cadmium plating from which the hydrogen can relatively easily escape during baking.

Are you saying that you apply it to titanium substrates?


Ted Mooney, Teds signature
Ted Mooney, P.E. - Pine Beach, New Jersey
Striving to live Aloha

February 9, 2013

RFQ: Where are these titanium particles available please? Give me location.

rohit [last name deleted for privacy by Editor]
student - vadgoan nimbalkar,pune maharastra

February 9, 2013

A. Hi Rohit. Please try contacting your local plating process supplier as they probably know where to get them.

For the best answers please describe your own situation rather than posting in the abstract. Are you looking for a few grams for your one-time school experiment (in which case a lab supply company would be better) or are you an intern assisting a purchasing department in a plating shop? Or are you already with a plating supplier? The answers will usually be different and always be better when the readers understand more deeply what you seek. Thanks.


Ted Mooney, Teds signature
Ted Mooney, P.E. - Pine Beach, New Jersey
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