A novel approach to fabrication of three-dimensional porous titanium with controllable structure

作者：Wang, Dong; Li, Qiuyan; Xu, Mingqin; Jiang, Guofeng; Zhang, Yunxia; He, Guo^*

来源：Materials Science and Engineering: C , 2017, 71: 1046-1051.

DOI：10.1016/j.msec.2016.11.119

• Porous titanium
• Infiltration casting
• Fabrication
• Acid corrosion
• Adhesion

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 0.4 mm. The porous titanium with the porosity of 32-47% exhibited the Young's modulus in the range of 23-62 GPa and the yielding strength in the range of 76-192 MPa. 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.

• 出版日期2017-2-1
• 单位上海交通大学; 金属基复合材料国家重点实验室