Preparation and characterization of porous magnesium materials

作者：Liu Xi qin^*; Liu Zi li; Zhang Xiao hong; Feng Jun dong; Yu Ta xi

来源：Transactions of Nonferrous Metals Society of China, 2006, 16: S1859-S1863.

• porous magnesium
• powder metallurgy
• spacer material
• microstructure
• porosity
• mechanical properties

The proper spacer material and the preparation technology for biological compatible porous magnesium materials were explored by the powder metallurgy method, and microstructures, porosity and mechanical proper-ties of sintered porous magnesium were investigated. The results show that compared with spacer materials of NH4CO3, NH3Cl and carbamide, NH4CO3 is the best one for preparation of sintered porous magnesium, and the worst one is NH3Cl. The isolated blind pores are formed mainly by the particle interval of the magnesium powders. Adding spacer material favors the formation of open pores, while has little contribution to the formation of blind pores. The overall porosity and porosity of open pore of the sintered porous magnesium increase with the increase of added spacer material, while decrease with the increase of the molding stress. The mechanical properties of sintered porous magnesium increase with decreasing addition of spacer material and increasing molding stress.

• 出版日期2006-12
• 单位南京大学