Electroless Ni-Co-P Plating on Fly Ash Cenosphere

Cenosphere is an advanced multifunctional micromeritic material. It is known as Material of the Space Epoch for such features as high compression strength, high melting point, high electrical resistance, low coefficient of heat conduction and coefficient of thermal contraction. Electroless plating is a new modification method for cenosphere to possess electrical and magnetic conductivity and extend application area. Electroless Ni-Co-P plating was carried out on cenosphere using AgNO_3 as activator to replace the conventional PdCl_2. The cenosphere particles were characterized by X-ray diffraction analysis, scanning electron microscope, energy dispersive spectroscopy during and after plating process. Resuhs show that Ni-Co-P alloy coating is obtained on fly ash cenospheres by electroless plating technique using AgNO_3 activator. The formation mechanism is suggested for electroless Ni-Co-P alloy plating on fly ash cenosphere using AgNO_3 as activator. The technology can improve the performance of Ni-Co-P alloy plating and has better application prospect for low cost