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Brazing on electroless nickel
We are trying to join, by brazing or soldering, a completely refractory glassy metal (Mo_49Ru_33B_18)to a different material (brass, bronze etc.). This material is covered by a tough and thick oxide layer. After many trials we deposited on the surface a thin layer of electroless nickel (Ni 88% P 12%); the layer shows an extremely good adhesion. How can we join on it? Should we use an acid flux and just a tin-silver solder?
Thank you,Alessandro B [last name deleted for privacy by Editor]
California Institute of Technology - Pasadena, California
August 31, 2008
Hi, Alessandro. Once you have electroless nickel on it you should be home free. You can plate a layer of another more solderable metal on it now if you wish, or solder the electroless nickel.
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey