摘要
采用化学共沉淀法制得羟基磷灰石(Ca_(10)(PO_4)_6(OH)_2)粉体和铝镁尖晶石(MgAl_2O_4)粉体,并以羟基磷灰石(HAP)粉体和铝镁尖晶石(Spinel)粉体为原料采用粉末冶金方法制得HAP·TCP-Spinel复合生物材料;采用X射线衍射分析、金相分析、红外光谱分析、烧结收缩性能分析和力学性能测试等对制备的材料进行了表征。研究结果表明:HAP·TCP-Spinel复合生物材料的烧结收缩率约为45％;HAP·TCP与Spine两相分布均匀,且界面结合良好;该复合材料表现出优良的抗弯强度和抗压强度性能;羟基磷灰石的含量为62.5％时该复合材料性能达到最佳,其抗弯强度和抗压强度分别为189MPa和352MPa。
Hydroxyapatite(Ca_(10) (PO_4)_6(OH)_2) powder and spinel(MgAl_2O_4) powder were prepared by sol-gel technique in this paper, and HAP · TCP-Spinel composite biomaterials was synthesized by hydroxyapatite powder and spinel powder. By X-ray diffraction, Metallography Images, Fourier transform infrared spectroscopy (FTIR), the efficiency of sintering shrinkage and mechanics performance were investigated. The experimental results show that the ratio of sintering shrinkage of HAP · TCP-spinel composite biomaterials is approximately 45％; the microstructure not only distribute equality, but the interface of hydroxyapatite and spinel combine excellently; the composite biomaterials has perfectly compressive strength and bending strength, biocompatibility and tissue bioactivity. The best of it with 62.5％ of hydroxyapatite is that the compressive strength, the bending strength is 189, 352 MPa respectively.
出处
《粉末冶金材料科学与工程》
EI
2003年第4期291-298,共8页
Materials Science and Engineering of Powder Metallurgy
