Studies on microstructure and crystallization behavior of electroless nickel-high phosphorus coatings
- 化学化工－已发表论文 
The electroless nickel-high phosphorus coatings with 12.8% P(mass fraction) have been deposited from acidic bath containing mixed complexing agents, The microstructure and crystallization behavior of the deposits have been characterized by AFM, TEM, DSC and XRD. The results show that the as-plated deposits exhibit a rounded-mound topography and have an amorphous structure. The deposits crystallize into metastable phase Ni5P2 at 343.8 degreesC, which are subsequently transformed into stable phases of nickel and Ni3P crystallites at 440.4 degreesC, This behavior is apparently different from that of the deposits produced from alkaline ethanolamine baths.