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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


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, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.


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