title: A novel approach to fabrication of three-dimensional porous titanium with controllable structure.
abstract: A new approach to fabrication of porous titanium by using the molybdenum wire as space holder was developed, in which titanium liquid was cast into the entangled molybdenum wires in a vacuum environment, and followed by etching off the space holder material in an aqua regia solution. This infiltration casting and acid corrosion method fabricated the porous titanium with different porosities with a pore diameter of 0.4mm. The porous titanium with the porosity of 32-47% exhibited the Young's modulus in the range of 23-62GPa and the yielding strength in the range of 76-192MPa. The adhesion and spreadability of the bovine osteoblast cells on the porous titanium were also evaluated in vitro. The porous titanium with 47% porosity has great potential for implant applications.
authors.affiliation: Shanghai Key Laboratory of Materials Laser Processing and Modification, and State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Dong
authors.initials: D
authors.lastname: Wang
authors.affiliation: Shanghai Key Laboratory of Materials Laser Processing and Modification, and State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Qiuyan
authors.initials: Q
authors.lastname: Li
authors.affiliation: Shanghai Key Laboratory of Materials Laser Processing and Modification, and State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Mingqin
authors.initials: M
authors.lastname: Xu
authors.affiliation: Shanghai Key Laboratory of Materials Laser Processing and Modification, and State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Guofeng
authors.initials: G
authors.lastname: Jiang
authors.affiliation: Shanghai Key Laboratory of Materials Laser Processing and Modification, and State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Yunxia
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Shanghai Key Laboratory of Materials Laser Processing and Modification, and State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai 200240, China. Electronic address: ghe@sjtu.edu.cn.
authors.forename: Guo
authors.initials: G
authors.lastname: He
mesh_terms: D000818:Animals; D002417:Cattle; D002448:Cell Adhesion; D002478:Cells, Cultured; D020007:Implants, Experimental; D008422:Materials Testing; D008982:Molybdenum / Q000737:chemistry; D010006:Osteoblasts / Q000166:cytology / Q000378:metabolism*; D016062:Porosity; D014025:Titanium / Q000737:chemistry*
chemical_list: D008982:Molybdenum; D014025:Titanium
keywords: Acid corrosion; Adhesion; Fabrication; Infiltration casting; Porous titanium