Structure, mechanical property and corrosion behaviors of (HA + β-TCP)/Mg–5Sn composite with interpenetrating networks

摘要: In this paper, a novel (Hydroxyapatite+β-tricalcium phosphate)/Mg-5Sn ((HA+β-TCP)/Mg-5Sn) composite with interpenetrating networks was fabricated by infiltrating Mg-5Sn alloy into porous HA+β-TCP using suction casting technique. The structure, mechanical property and corrosion behaviors of the have been evaluated means scanning electron microscopy (SEM), X-ray diffraction (XRD), testing, electrochemical immersion test. It is shown that molten has infiltrated not only pores but also struts scaffold to forming compact composite. microstructure observation shows Mg contacts closely, no reaction layer can be found between scaffold. ultimate compressive strength as high 176MPa, which about four fifths bulk alloy. tests indicate resistance better than products on surface are mainly Mg(OH)2, Ca3(PO4)2 HA. Appropriate properties (HA+β-TCP)/Mg-5Sn its possibility for new bone tissue implant materials.