Fabrication of Porous Titanium-Hydroxyapatite Composite via Powder Metallurgy with Space Holder Method
作者: M.Y. Zakaria A.B. Sulong M.I. Ramli B. Ukwueze W.S.W. Harun R.L. Mahmud
刊名: Journal of Advanced Manufacturing Technology, 2018, Vol.12 (1)
来源数据库: Penerbit Universiti Teknikal Malaysia Melaka
关键词: Titanium Ti6Al4VHydroxyapatiteSpace HolderPowder MetallurgyPorous
原始语种摘要: The porous structure of metals has been attracting a growing interest, particularly the use of titanium for bone implants as it promotes cell growth and matches the elastic modulus of the human bone. A porous titanium-hydroxyapatite (Ti-HA) composite was successfully fabricated through the powder metallurgy route using the space holder method. Ti, HA and NaCl space holder were mixed with a binder system consisting of palm stearin (PS) and low-density polyethylene (LDPE). The mixture was later put through a hot press process at a pressure of 20 bars and a temperature of 150 °C. The binders were removed in a two-step process; solvent and thermal de-binding, followed by sintering in a high vacuum furnace at 1300 °C for 5 hours holding time. The Ti-HA at the ratio of 9:1 possessed the best...
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  • Space 空格
  • hydroxyapatite 羟磷灰石层析
  • binders 横向钢筋
  • holder 支持器
  • temperature 温度
  • stearin 硬脂精
  • porous 多孔的
  • attracting 吸引
  • fabricated 制造
  • possessed 占有的