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Properties of Electroless Nickel

I want to know all parameters regarding electroless nickel coating. like its hardness,coeff. of friction,etc..please anybody can help me.

Sanjay Kushwaha.
plating shop employee - Nasik, Maharashtra, INDIA
April 9, 2009

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April 9, 2009

Hi, Sanjay. The short answer is that EN coatings are hard, electrically conductive, reasonably decorative, and highly corrosion resistant.

But asking for the properties is a tall order indeed! Phosphorous-based EN comes in 3 flavors: low phos, mid phos, and high phos, which are very different from each other -- the first being a microcrystalline solid solution, and the last being a gamma phase amorphous coating. There is also boron-based EN. And heat treatment radically alters the properties compared to non heat-treated coatings.

For a good study of the properties you could consult Mallory and Hajdu's "Electroless Plating" [on eBay , Amazon, or AbeBooks affil links] . I recently attended an excellent presentation by Heatbath's Diana St. Jacques entitled "Electroless Nickel Deposit Properties". It was a powerpoint presentation and you might inquire of Heatbath whether they are willing to e-mail you a copy. Good luck.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
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