Enhanced corrosion resistance and in vitro bioactivity of NiTi alloys modified with hydroxyapatite-containing Al 2 O 3 coatings
作者: Xiyuan WangFu LiuYing Song
作者单位: 1School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China
2School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, PR China
刊名: Surface & Coatings Technology, 2018, Vol.344 , pp.288-294
来源数据库: Elsevier Journal
DOI: 10.1016/j.surfcoat.2018.03.034
关键词: NiTi alloyCoatingCathodic plasma electrolytic depositionBioactivityCorrosion resistance
原始语种摘要: Abstract(#br)Hydroxyapatite (HA)-containing Al 2 O 3 coatings were prepared on NiTi alloys through a cathodic plasma electrolytic deposition (CPED) process, followed by hydrothermal treatment (HT). The surface morphology, elemental distribution and phase composition of each coating were studied by scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and X-ray diffraction (XRD). SEM observations revealed that the coatings exhibited a “crater-like” porous structure, and that the thickness of the coating could be up to 100 μm. The results of EDS demonstrated that the Ca and P concentrations in the Al 2 O 3 coatings could be increased to 8.2% and 4.7%, respectively, and that the Ca/P ratio could reach 1.72, which was close to that of natural HA. The results of XRD...
全文获取路径: Elsevier  (合作)
影响因子:1.941 (2012)

  • corrosion 腐蚀
  • resistance 抵抗
  • alloys 多组分胶
  • containing 包含的
  • electrolytic 电解的
  • hydroxyapatite 羟磷灰石层析
  • plasma 深绿玉髓
  • bioactivity 生物活性
  • modified 改进
  • deposition 沉积