title: Effect of phosphate additives on the microstructure, bioactivity, and degradability of microarc oxidation coatings on Mg-Zn-Ca-Mn alloy.
abstract: Calcium phosphate coatings were prepared on the surface of self-designed Mg-Zn-Ca-Mn alloy using microarc oxidization technology. To characterize the microstructures, cross-section morphologies, and compositions of the coatings, the authors used scanning electron microscopy equipped with an energy-disperse spectrometer, x-ray diffraction, and Fourier transform infrared spectroscopy. Potentiodynamic polarization in the simulated body fluid (SBF) was used to evaluate the corrosion behaviors of the samples. An SBF immersion test was used to evaluate the coating bioactivity and degradability. After the immersion tests, some bonelike apatite formed on the coating surfaces indicate that bioactivity of the coatings is excellent. The coating prepared in electrolyte containing (NaPO3)6 had slower degradation rate after immersion test for 21 days.
authors.affiliation: Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Ji'nan 250061, Shandong, People's Republic of China.
authors.forename: Jinhe
authors.initials: J
authors.lastname: Dou
authors.affiliation: Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Ji'nan 250061, Shandong, People's Republic of China.
authors.forename: Qiongya
authors.initials: Q
authors.lastname: You
authors.affiliation: Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Ji'nan 250061, Shandong, People's Republic of China.
authors.forename: Guochao
authors.initials: G
authors.lastname: Gu
authors.affiliation: Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Ji'nan 250061, Shandong, People's Republic of China.
authors.forename: Chuanzhong
authors.initials: C
authors.lastname: Chen
authors.affiliation: Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Ji'nan 250061, Shandong, People's Republic of China.
authors.forename: Xihua
authors.initials: X
authors.lastname: Zhang
mesh_terms: D000497:Alloys / Q000737:chemistry* / Q000494:pharmacology; D001843:Bone Cements / Q000737:chemistry* / Q000494:pharmacology; D020099:Coated Materials, Biocompatible / Q000737:chemistry* / Q000494:pharmacology; D008855:Microscopy, Electron, Scanning; D010710:Phosphates / Q000032:analysis*; D013052:Spectrometry, X-Ray Emission; D017550:Spectroscopy, Fourier Transform Infrared; D013499:Surface Properties; D014961:X-Ray Diffraction
chemical_list: D000497:Alloys; D001843:Bone Cements; D020099:Coated Materials, Biocompatible; D010710:Phosphates