7Lin Bi-lan, Lu Jin-tang, Kong Gang, et al. Composition and Performance of the Composite Coatings Obtained ba Phosphating and Cerium Nitrate Post-sealing on Galva-nized Steel [J]. Jorunul of Rare Earths, 2007,25:461- 464.
8Zhang S L, Chen H H, Zhang X L, et al. Characteristics of Phosphate Coatings on AA6061 Using Yttrium Oxide as Additive[J]. Corrosion, 2008,64 ( 1 ) : 30 - 34.
9Zhang Sheng-lin, Zhang Xiao-lin, Chen Hua-hui, et al. The Role of Rare Earth Nitrate (REN) in Phosphating of Aluminum Alloy[J]. Metal Finishing, 2007, 105(6) : 39-45.
10Lin C T. Green Chemistry in Situ Phosphatizing Coatings Progress in Organic Coatings [J]. Progress in Organic Coatings,2001,42(14):226 -235.