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Boron instead of Cobalt as hardener in Sulfamate Nickel?

My plating shop uses a sulfamate-nickel plating solution for electroplating nickel. We are using a small amount of Cobalt sulfamate to achieve the desired hardness. This is working fine, but has any research been none on using a boron additive for greater hardness. Nickel alloys with boron such as dameron or culmanoy are very hard and I would like to know if this has been tried in electroplating to anyones knowledge.

Thanks

Chad Nicewonger
plating shop - Titusville, Pennsylvania, United States
2004

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Yes I have seen a paper on it, maybe its in research labs but on production runs I conclude its still hearsay.

Khozem Vahaanwala
Saify Ind

Bengaluru, Karnataka, India

2004

I think additive B available at Macdermid is boron based.

Russell Richter
- Danbury, Connecticut, USA
2004

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Boron is used in electroless nickel and has never been published as being co-deposited with electroplated nickel. Nickel Bromide (Bromine is a very different element from Boron) is the main component of Barrett Nickel Sulfamates's Additive B.

Robert H Probert
Robert H Probert Technical Services

Garner, North Carolina

2004