Synthesis and Properties of Electroless Ni-P-W/Nano-Al₂O₃ Composite Coatings Deposited on Sintered NdFeB Permanent Magnet

• DOI: 10.4028/www.scientific.net/amr.306-307.901
• Publication Date: 2011-08-16T11:34:32Z
• Authors: Huan Ming Chen; Ya Hong Gao; Qiong Lv; Dong Yang; Xin Xin Lin
• Keywords: Neodymium magnet; Morphology

The Ni-P-W/nano-Al 2 O 3 composite coatings were deposited on the surface of sintered NdFeB permanent magnet by electroless plating method. morphology and phases investigated using scanning electron microscopy X-ray diffraction respectively. hardness corrosion resistance also tested. results indicated that appears closely nodules morphology, microhardness increases with increasing incorporation Al ratio. Compared Ni-P-W alloy coatings, was superior to coating obviously.